AIIMIIT washing soda

1.what is common name of sodium carbonate and why it is called so

2.how to prepare washing soda from sodium carbonate

3.what is formula of washing soda.what does 10H2o signify.

4.does water of crystalisation make washing soda wet.what do  you mean by recrystallisation

5.what are imp uses of washing soda

6.what are 2 different types of water .how are they categorised

7.what are salts ptesent temporary and permanent hard water.

8.what are formulas of cement and glass.how soda ash is useful in preparing them

Ans.As water plays a large role in the preparation of concrete, the addition of soda ash can help accelerate setting times for workers. When creating flat glass, the compound is used to help lower melting points and its alkali effectively supports the shaping of the glass items

9.what is borax and its formula

10.what is difference between sodium carbonate and washing soda.write formulas and weights

AIIMIIT TEST NO 6 8th,9th and 10th class

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8TH CLASS 50 marks 1 hr
1.what is ke, relate ke and momentum
2.what is pe,and what is pe of body of mass 2kg which is at height of 10m
3.what is power,find power of person who can run at 10m/s whose mass is 40 kg in 1 min.
4.what is ke of body of mass 2kg moving with 30m/s changed to 40m/s
5.if earth can lift 2 million tonnes of dust in 140 days .how much it can lift in 100 days
6.if a person can type 140 words in 5 mins .in how much time he can type 550 words
7.if x and y are in direct proportion.find x if y is 10 and constant of proportion is 5
8.if a car can move 100 kms with 3 lits of petrol.how much distance can it move with 50 litres of petrol
9if x/y =5/7=a/21=20/b.  find a and b
10.equate pe and ke.and make h as subject derive formula for h.and find height of falling body if it hits ground with speed of 4.9 m/s

9th class 50 marks 1 hr
1.what is ke, relate ke and momentum
2.what is pe,and what is pe of body of mass 2kg which is at height of 10m
3.what is power,find power of person who can run at 10m/s whose mass is 40 kg in 1 min.
4.what is ke of body of mass 2kg moving with 30m/s changed to 40m/s
5,.equate pe and ke.and make h as subject derive formula for h.and find height of falling body if it hits ground with speed of 4.9 m/s
6 .2x² - 17x - 30  factorise
7 .6x²+7√2x+4.[it is root 2 ] be careful
8.x2 + 15x - 2700        it is x square kids
9.2x2 - 5/6 x +1/12
10.[2a-b]2 + 2[2a-b] - 8     [ 2a - b square it is]

1oth class 50 marks 1 hr 
1.write all differences between acids and bases
2.write breifly about ph
3,write all reactions of H2SO4 with alluminium,alliminium hydroxide,alluminium carbonatae nd alluminium bicarbonarte
4.write acidic component,basic component and type of fallowing salts
pottasiumchloride
sodium sulphate
calcium nitrate
magnbesium phosphate
alluminium acetate
5..st square of any postive einteger in the form of 3m,3m+1 where m is some int
6..st cube of any int is of form 9m,9m+1,9m+8
7,..pt one of every 3 consecutive integers is divisble by 3.(n-1,n,n+1)
8.prove it as composite number 23x19x17+17
9.find the lcm of fallowing fraction 2/10 ,5/20  ,7/30
10.find th hcf and lcm and verify h x L =X   x   Y of fallowing number 2048 and 960

AIIMIIT baking powder

1.what is difference between baking soda and baking powder
2.what is ph of baking soda
3.why tartaric acid is added to baking powder and write formula of tartaric acid
4.what are 3 primary uses of baking soda
5.why baking soda is called as mild base
6.what happens to baking powder when added to bread .justify your statement with reaction
7.how can baking soda is used as antacid .write reaction
8,what is milk of ,magnesia and write its formula why it is used
9.what salt is used in making crispy pakoras wand what is its ph
10.why cakes and breads are porous,spongy and fluffy
11.what is composition of soda acid fire extinguisher and write its reaction
12.can we use soda acid fire extinguisher in fighting against electrical and oil firs.givew reason for your answer
13.how can you prepare baking soda and write its preparation
14.what is byproduct when we prepare baking soda
15.what is baking soda formula and write its molecular weight
16,what happens on heating baking soda.how do you test the gas evopved

17.Baker man prepared cakes and forgot to add one ingredient which turned out his cakes being very hard.what he might have forgotten

Asses and justify 

18.what is ionic form of baking soda 

Write ions

19.why baking soda fire extingusher cannot be used to fight oil fir

Ans.Soda-acid fire extinguisher is not successful in controlling fire due to oils because it uses water to cool the combustible substance. But water is heavier than oil and settles down below the oil particles and oil keeps on burning on the top. Hence, fire cannot be controlled.

20.why cant soda acid fire extinguisher cannot be used to fight on electrical fires

Ans.as it liberates water

Which is dangerous

soda acid extinguisher is basically a water extinguisher, so normally you woul use it on a class A fire (wood, paper and such). ... Class C fires are electrical. Water and electricity is.

AIIMIIT bleaching powder

1.what is common name of bleaching powder
2.how bleaching powder is prepared
3.what are uses of bleaching powder
4.what happens when bleaching powder reacts with air
5.why bleaching powder is used as disinfectant
6.how does bleaching powder bleach.is it by oxidation or reduction
7.what is colour of bleaching powder
8.write formula of bleaching powder and write its molecular weight
9.what is meant by available chlorine
10.what chlorine acts bleaching agaent and disinfectant
11.

AIIMIIT KWH numericals

1.what is relation between KWH and joules
2.what is difference between KWH and KW
3.what is no of units consumed by tv of 1000w in 10 hrs by 1 tv
4.what is total no of units consumed by 2 tv of 2000w used daily for 10 hrs and 3 fans of 100w power used daily for n20 hrs.in a month of 30- days
5.what is total no of units consumed by 2 tv of 1000 watt each daily for 5 hrs,3 fans of 200 watts daily for 20 hrs,4 bulbs of 100 w daily used for 10 hrs. in a month of 30 days .
also calculate cost of electricity bill if each unit costs 2 rs
6.find the units and bill generateds by house hold usage of fallowing instuments in month of april
a]one tv of 1000 watt for 10 hrs daily
b]1 fridge of 2000watts used daily for 24 hrs
c]ac of 2000 w daily used for 10 hrs
d]4 bulbs of 60 w daily used for 10 hrs
if bill is generated in slab rate.
first 100 units 2 rs
next 100 units 3 rs
thereafter 5 rs for each unit 

how to find factors for 4th power p[olynomials with work sheet

AIIMIIT splitting middle term

AIIMIIT power

1,define power
2.what are units of power
3.what is commercial unit of power,write relation with watts
4.what are different formulas of power
5.what is difference between kilowatt  and KWH
6,find power when 10 joules of work done in 2 sec
7.find [power when 2kg body falling from 10 m height for 2 sec
8.find power needed to stop a body of 2 kgs moving with 10m/s in 5 sec
9.what is power of body having experiencing force of 10n when moving with constant speed of 2m/s
10.find power of gadget with 2KWH dissipating energy in 2 mins

11.You’re riding a toboggan down an icy run to a frozen lake, and you accelerate the 80.0-kg combination of you and the toboggan from 1.0 m/s to 2.0 m/s in 2.0 s. How much power does that require?

12A 1,000-kg car accelerates from 88 m/s to 100 m/s in 30 s. How much power does that require?

13.A 60.0-kg person is running and accelerates from 5.0 m/s to 7.0 m/s in 2.0 s. How much power does that require?

14.120-kg linebacker accelerates from 5.0 m/s to 10.0 m/s in 1.0 s. How much power does that require?

15.120-kg linebacker accelerates from 5.0 m/s to 10.0 m/s in 1.0 s. How much power does that require?

16.

AIIMIIT salts

1. define salt
2.how do you get acidic ,basic and neutral salts
3.what is acidic component,basic component and type of salt of fallowing salts
potassium sulphate
sodium nitrate
calcium chloride
magnesium acetate
alluminium carbonate
zinc phosphate
ferrous chloride
lead sulphate
copper nitrate
silver cloride
4,give some egs of neutral salts
5.why baking soda is used in treting acidity
6.which salt is commonly called soda ash
7.what are some salts which have water of crystalisation give some egs
8,define water  of crystallisation.what happens when copper sulphate is heated

AIIMIIT kinetic energy derivation and numericals

1.define kinetic energy
2.derive formula for kinetic energy
3.what are egs of bodies having kinetic energy
4.if a body of mass 10 kg moving with 2 m/s what is its ke
5.if body of mass 2 kgs starting from rest attain velocity of 20 m/s .find its ke
6. what is relation between ke and momentum
7,what is energy possed by bstone resting on ground
8.what is energy possed by aeroplane moving in air
9.what is ke of body of mass 10kg having momentum 2 kgm/s
10.what is momentum of body having ke 20j and mass 2 kg
11.what happens when a stone falling from height .what is energy conversion occurs
12.what is energies present when stone falling on nground at top ,middle and lower most points
13.find percentage increase in ke when body increase speed from 10 m/s to 20 m/s
14.find percentage ionc in ke if speed inc from 20,m/s to 30 m/s
15,find percentage decrease in ke if speed decrease from 30 m/s to 20 m/s
16. find percentage decrease in ke if speed decreases from 40 m/s to 30 m/s
17, if ke of body is 10j and mass remains same and speed is 20 m/s .find new ke if speed changes to 30 m/s
17.car of mass 700 kg moving with 20 m/s,cal its kE
18.ball moving with 50 m/s whose ke is 75  j.find massin grams

AIIMIIT euclids lemma egs

1.show that every positive integer is of the form of 3q,3q+1,and 3q+2

2.st every positive integer is of form 2q and that of every postive odd integer is 2q+1

3.st every postive integer is of form 4q+1,4q+3 for some odd positive integrr

4.st square of any postive einteger in the form of 3m,3m+1 where m is some int

5.st cube of any int is of form 9m,9m+1,9m+8

6.pt one of every 3 consecutive integers is divisble by 3.(n-1,n,n+1)

7.pt product of any two consecutive int is divisble by2

8.pt product of 3 consecutive int is div by 6

9.for any positive int n,pt n3 - n ( n3 means n cube) is div by 6

10..pt square of any positive int is if the form 4q,4q+1

11..pt square of any positive int is of form 5q 5q+1 , 5q+4

12.pt sq of any odd  posotive int is of form 8q+1

13.st n2- 1(n square minus 1) is divisble by 8.if n is odd positive int

14.pt n2-n (n sqiare minus n) is divisble by 2.for every positive int

15.st every odd positive int is if the form 6q+1,6q+3,6q+5

16.st square of any positive int cannot be of form 6m+2,6m+5

17.st one and only one out of n,n+4,n+8,n+12,n+16 is divible by 5

18.st square of odd positiv int can be of form 6q+1,6q+3 for any positiv int 

AIIMIIT prove given number is composite number

AIIMIIT potential energy work sheet and numericals

Potential Energy Definition

Potential energy is defined as the energy stored in an object. Potential energy can be divided into many types; Gravitational potential energy, Elastic Potential energy, Electric Potential Energy etc. Here the gravitational potential energy is defined as the energy possessed by an object by virtue of its position relative to others. Elastic potential energy is defined as the energy possessed by virtue of stresses within its body and an electric potential is defined as the energy possessed by an object by virtue of the total charge stored within.

Potential Energy Formula

The formula for gravitational potential energy is given below.

PE = mgh

Where,

• PE is the potential energy of the object in Joules, J

• m is the mass of the object in kg

• g is the acceleration due to gravity in ms-2

• h is the height of the object with respect to the reference point in m.

Example Of Potential Energy

We all know that dams are constructed on rivers for the generation of electricity. But do you know the reason behind this? Here, the potential energy possessed by water is used to harness electrical energy. Water raised to a certain height gains potential energy with respect to the ground due to the gravitational force acting on it. This energy is used to turn the blades of turbines positioned in the dams that eventually helps in the generation of electricity.

Derivation Of Potential Energy

As per the potential energy function for a conservative force, the force acting on an object can be 

W=fs 

But f=ma

So 

W=Mas

All work done converts to potential energy

Pe=mgh

Here the force acting on the object can be given as

F=mg, and the distance from the point of reference can be given as h.

1.define energy

2.what are different types of energies

3.define potential energy

4.derive formula for potential energy

5.give egs of some bodies having potential energy

6.what eneergy does a bird flying in air will have

7.how does potential energy gets converted to kinetic energy on falling from a height

8.what is unit of porential energy

9.what is potential energy of 2kg mass body which is at a height of 10m

10.what is potential energy of a body which is at height of 5m whose mass is 2 kg

11. What is potentail energy of body 200 gms when it is at heigh of 10 m

12.if potential energy of body is 100 j

Of mass 2 kg .find the height

13. A mass of 2Kg is taken from the ground to the height of 10m. Find the potential energy of the object.
Question 2: A mass of 5Kg is taken from the ground to the height of 100m. Find the potential energy of the object.
Question 3: A mass of 5Kg is taken from the ground for 5 m uphill on the wedge. The wedge makes an angle of 30° with the ground. Find the potential energy of the block. 
14: A mass of 10Kg is taken from the ground for 10m uphill on the wedge. The wedge makes an angle of 30° with the ground. Find the potential energy of the block. 
15. Find the velocity of the ball just before hitting the ground. Assume that initially, the ball was at a height of 100m, and its mass was 4Kg. 
16: The entire potential energy of a ball is transformed into its kinetic energy by coming on the ground from a certain height. The height at which the ball was initially placed was 10m. The mass of the ball is 1 kg. Find the gain in the kinetic
17: A spring is stretched upto 9cm, the spring constant of the spring is 2 N/m. Find the value of Potential energy stored in the spring?
18. Two objects are kept at different heights, first object is at 5meters and second object is placed at 15 meters. Which object has more Potential energy if the first object is 5 times heavier than the second?
19: A ball of mass 0.8 kg is dragged in the upward direction on an inclined plane. Calculate the total potential energy gained by this ball given that the height of the wedge is 0.2 meter.
20: A wagon loaded with iron blocks is pushed up an inclined plane to its highest point. The total mass of the wagon is 50 kg and the height of the topmost point from the ground is 5 meters. What is the total potential energy of the wagon at the top?
21A box has a mass of 5.8kg. The box is lifted from the garage floor
and placed on a shelf. If the box gains 145J of Potential Energy (Ep),
how high is the shelf?:

22A man climbs on to a wall that is 3.6m high and gains 2268J of
potential energy. What is the mass of the man?

23A 800g ball is pulled up a slope as shown in the diagram. Calculate
the potential energy it gains.

24: This 2 kg hammer is 0.4 m up. What is it's PE?

25.We drop this 0.1 kg apple 1 m. What speed does it hit the ground with?

26.An object with 100 N weights is raised to a height of 15m. Find the potential energy possessed by the object at that height. Also find the new potential energy:
a.If the same object is raised half of its original height.
b.If the same object is raised to three times of its original height?
Given g=10m/s2

27.A crane lifts a 75kg mass a height of 8 m. Calculate the gravitational potential energy gained by the mass (g = 9.8 N/kg).

28.A ball with a mass of 500g is lifted onto a shelf which is 1.5m above the ground. Calculate the gravitational potential energy gained by the ball (g = 9.8 N/kg).

28.How much G.P.E. does a 5kg rock that is 10m above the ground has?.

30.A helicopter is flying at a height of 1.5km. If it has 50MJ of G.P.E., what is the mass of the helicopter?

31.A boy throws a 0.2kg rock up with a speed of 5m/s. If all the kinetic energy becomes gravitational potential energy, how high will the stone go?

32.. A 1-kg body free fall from rest, from a height of 10 m.

33. A 1,500 gram object at 20 meters above the ground, free fall to the ground. What is the gravitational potential energy of the object. Acceleration due to gravity is 10 m/s2.

34.An object of mass 40 kg is raised to a height of 5 m above the ground. What is its potential energy. If the object is allowed to fall, find its kinetic energy when it is half-way down.

35.Two bodies A and B of equal masses are kept at heights of h and 2h respectively. What will be the ratio of their potential energies?

36.A body of mass 100 kg is lifted up by 10 m. Find :
(i) the amount of work done
(ii) potential energy of the body at that height (value of g = 10 m/s2)

37.A boy weighing 50 kg climbs up a vertical height of 100 m. Calculate the amount of work done by him. How much potential energy does he gain? (g = 9.8 m/s2)

38.To what height should a box of mass 150 kg be lifted, so that its potential energy may become 7350 joules? (g = 9.8 m/s2)

39.A body of mass 2 kg is thrown vertically upwards with an initial velocity of 20 m/s. What will be its potential energy at the end of 2 s? (Assume g = 10 m/s2).

40.A body of mass 2 kg is thrown vertically upwards with an initial velocity of 20 m/s. What will be its potential energy at the end of 2 s? (Assume g = 10 m/s2).

41.A weightlifter is lifting weights of mass 200 kg up to a height of 2 metres. If g = 9.8 m s−2, calculate :
(a) potential energy acquired by the weights.
(b) work done by the weightlifter
(b) A person of mass 50 kg climbs a tower of height 72 metres. Calculate the work done. (g = 9.8 m s−2)

42.A girl weighing 400 N climbs a vertical ladder. If the value of g be 10 m s−2, the work by her after climbing 2 m will be :

AIIMIIT chlor alkali process

1.what is an alkali.give egs

2.how is alkali and base different

3.why preparation of NaOH is called chlor alakli process

4.in chlor alkali process what are liberated at cathode and anode.explain with reaction

5.write ionic equation of chlor alkali process

6.what are uses of chlirine 

7.what are uses of hydrigen

8.what is brine

9.what do u mean by electrolysis

10.what is caustic soda

11.write reaction of chlor alkali process

12.why strong bases like NaOH and KOH are called lye.how it is used fordead bodies 

13.

AIIMIIT properties of acids and bases

1.what is neutralisation

2.what happens when acid reacts with metals.how to test the gas

3.what hppens when carbonates reacts with acids.how do you test that acid.write reaction

4.what happens when co2 reacts with lime.what happens when excess co2 is passed

5.what happens when acids react with sulphates.what is effect of gas with lime

6.what happens when metals react with bases.write reaction to give eg

7.what happens when zn reacts with NAOH.write reaction

8.why bases wont react with carbonates and bicarbonates .justify 

9.write reactions of HCL with K,KOH,K2CO3,KHCO3

10.what happens when bicarbonates reacts with acids

11.try to write all reaction of acids Hcl,H2so4,Hno3,H3po4,H2co3,ch3cooh with k,Na,ca,Mg,Al,zn,fe,pb 

And rewpectives bases,carbonates and bicarbonates also

AIIMIIT hoe to show whether a number with power ends with zero or not

AIIMIIT salts acids and bases topic work sheet

1.define salt

2.what are 3 different salts .how r they formed

3.on what basis we can say acid or base is strong or weak

4.write name of acid ,base from which this salt has formeds,and type of salt for fallowing compounds

a.

AIIMIIT work sheet and explanation on ph

1.define ph

2.who invented ph scale

3.write formula for ph

4.A=3 and B=6 which is more acidic.

5.what is ph of neutral substance.give some eg of neutral 

6.is blood acidic or basic .why

7.if a substance has 0.001 M .find ots ph and poh

8.what do u mean by ionic product of water and what is its value

9.what are colours of acid base and salt in universal indicator solution

10.what happens to H+ or OH -  ions concentration on dilution.

11.why water should not be added to acid directly

12.what is meant by glacial acetic acid.whay is it called so

13.why organic acids are weak and mineral acids are strong

14.what do you mean by strong and weak acids or strong and weak bases

15.write the ions present in HCL,H2SO4,HNO3,H3PO4,CH3COOH
16.what is ph and poh of 0.002M HCL
17.what isph of 0,003M H2SO4
18.is urine acidic or basic .why
19.why farmer adds lime to soil frequently
1
20.what is cause of degradation of marble of taj mahal
21.wh it is not suggestable to cut lime on marble floor

AIIMIIT work numericals worksheet

1.convert 1 joule to ergs

2.find work done when 10 N of force displace body by 20 m.

3.find work done when 10 kg body move to a distance of 10 m with and accelearation of 5 m/s2

4.find work when 2 kg body move to 5m with ans accelaration of 2 m/s2 .when force acts at an angle of 30 degree

5.find work when 3 kg body moves diatance of 5mwith an accelaration of 3 m/s2.express in ergs

6.find work done when 10 gms body displace by 10m.with and accelaration of 2 m/s2

7.find mass when 100 joules of work done body displace by 10m. Take g=10.

8.derive work energy theorem

9.find work when 10 kg body  attains a velocity of 5m/s to 10 m/s.

10.find work when 20 kg body when body starts from rest and attains a velocity of 36 kmph

11.find work when 100 gm body displace by 20 m.with an accelaaration of 2 m/s2.

12.what is work done by centriperal and centrifugal forces

13.what  is work done when a force of 500 N moves body 10m north and 24m east.

14.what is work done by body falling from a height of 10m whose mass is 10kgs

15.

AIIMIIT differences between acids and bases

1.what is acid and base according to arrhenius
2,what is acid and base according to lowry and brosted
3.what is lewis acid and base
4.what colour acid bases show in universal indicator solution
5.what colour change occur to acid and base with litmus paper
6.what colour changes you can see for acids and bases in methyl orange
7,what colour change ou see in acids and bases in phenopthalene
8,what are general taste of acids and bases
9.what is ph range of acids ,bases, and neutral substances
10.what acid is present in lemon,mango,tomato,tamarind
11.give som egs of bases which you know
13,what acid is present in bee sting
13.why do we apply tooth paste or baking soda where bee sting takes place
14.what is neutralisation means
15.what acid is present in vinegar

16.litmus is prepared from wbich organism

17.define universal indicator means what

AIIMIIT work basics with worksheet

1.define work
2.write dimensional formula for work
3.what are si and cgs units for work
4.what is relation beween si and cgs unit of work derive and show it
5.when is positive ,zero and negative works possible .explsin wth egs
6.what is formula of work.what is cos@
7.is work a vector and  scalar
8.what is amount of work done by railway porter walking on platform with luggage on his head
9.what is work done by person climbing ladder with luggage on his head
10.what is work done by friction value, support ur answer with reason
11.when is work is said to be done on application of force
12.what is formula of work

AIMMIIT how to find factors for 4th power polynomial

AIIMIIT how to find factors for cubic ploynomials

AIIMIIT how to find factors for cubic ploynomials

hcf 6th variety hcf of fractions

hcf 6th variety hcf of fractions
1

.

AIIMIIT a^+b^3+c^3-3abc revsion all 4 verities of sums

AIIMIIT a^+b^3+c^3-3abc  revsion all 4 verities of sums

Aiimiit Balancing reactios practice work sheet

Aiimiit Balancing reactios practice work sheet

chemical reactions work sheet

→→→chemical reactions work sheet
1.define skeletal reaction
2.why reaction shoulkd be balanced
3.why nitroen is added to chips packets
4.give 5 methods to prevent rancidity
6.why hydrogen gas collected is double of oxygen gas in decomposition of water
7.element x reddish brown in colour when exposed to air becomes black compound y.
y on exposing to air reacts with hydregen to give back x.identiify x,y and write reactions to justify ur answer
8.define corrosion what happns when silver and copper exposed to air .write reactions to justify your answer.
9.zn+cuso₄ → cu+znso₄.identify who underwent
oxidation
oxidising agent
reduction and
reduciong agent
10.balance the reaction kclo₃ → kcl +o₂
11.why magnesium ribbon should be cleaned before combustion

12.what is colour of lead iodide ppt.write reaction of lead nitrate with potassium ioidide

13.whay should we balance reactions

aiimiit hcf leaving remainder word problems variety sums

aiimiit hcf 3rd variety sums

1.find largest number which divides 615 and 963 leavin reminder 6 in each case
2.find the reayest number which divides285 and 1249 leaving rminder9 and 7 respectively
3.find larest number which divides 280 and1245 leavin remainder 4 and 3 respectively
4.what is the largest number that divides626,3127,15628 leavin remainder1,2 and 3 respectively
5.find the greatest number which dividess 445,572,699leaving remainders 4,5,6 respectively
6.find the greatest number which divides2011,2623 leavin remainder9 and 5
7.find greatest number which divides1251,9377,15628 leaving remainder 1,2,3 in each case
8.245,1029 leaving remainder5 in each case
9.2053,967 leaving remainder 5 andf 7
10.398,436,542 leaving remainder7 ,11,15
11.35,60 lvn rem 3 ,6
12.110,130 lvn rem 5,10
13.965,660 lvn rem 2 ,3
14.595,255 levn remin 3 in each case
15.510,1160 lvg rmd 4,5
16.1290,580 rmin 2 ,5
17.2060,980 rmin 12,20
18.510,1160 rmin 4,5
19.870,260 rmin 3,5
20.250,6560 rmin 10,8

AIIMIIT a^3+b^3+c^-3abc 4th variety sums

AIIMIIT a^3+b^3+c^-3abc 4th variety sums

a^3 + b^3 + c^3 -3abc part 3 sums to practice

a^3 + b^3 + c^3 -3abc part 4 sums to practice

a^3 + b^3 + c^3 - 3abc 2nd variety part 2 sums

a^3 + b^3 + c^3 - 3abc     2nd variety part 2 sums
simplify  and then substitute in formula and expand

1]1x^3+8y^3+27c^3-18xyz
2]64a^3+125b^3+216c^3-360abc
3]343d^3+512e^3+729f^3-1512def
4]x^3y^3+a^3b^3+m^3n^3-3xyabmn
5]8/27 x^3+64/125 y^3+216/343z^3-48/35 xyz
6]0.001 m^3 + 0.008y^3 + 0.027z^3 - 0.009myz
7]0.064a^3+0.125y^3+0.216z^3-0.36ayz
8]x^3/y^3+a^3/b^3+m^3/n^3- 3xam/ybn
9]1.728x^3+2.197y^3+2.744z^3-6.552xyz
10]x^y^3z^3+a^3b^3c^3+m^3n^3p^3 -3xyzabcmnp
11

aiimiit hcf and lcm sums to practice

hcf and lcm practice sheet
fin hcf by division,primefactorisation,euclids alorithm and lcm by prime factorisation and also verify hcf x lcm= X .  Y
1.32,54                51.14,36,42
2.18,24                52.850,680
3.70,30                53.6,72,120
4,56,88                54.
5.475,495
6.75,243
7.240,6552
8.155,1385
9.100,190
10.105,120
11,135,225
12.196,38220
13.867,255
14.1260,7344
15.2048,960
16.184,230,276
17.136,170,255
18.963,657
19.592,252
20.506,1155
21.1288,575       
22.120,180,240
23.408,1032
24.657,963
25.616,32
26.32,24
27.56,72
28,65,117
29.81,237
30.210,55
31.12576,4052
32.210,55
33.222,468
34.825,675
35.105,140,175
36.15,12
37.24,15
38.26,91
39.510,92
40.336,54
41404,96
42.12,15,21
43.17,23,29
44.40,36,126
45.84,90,120
46.8,9,25
47.24,15,36
48.306,657
49.48,60,72
50.12,36,48

10 and 20
18 and 45
21 and 49
20 and 50
16 and 40
30 and 60
27 and 63
32 and 60
8 and 40
15 and 35
18 and 45
20 and 50
16 and 60
14 and 35
16 ,48 ,80
12 , 30 , 54
45 and 36
40 and 75
72 and 54
24 and 64
96 and 128
27 and 45
44 and 110
81 and 117
18,24,27
18,45,36

chemical reactions notes

chemical reactions lesson

chemical reactions 10th cbse ncert science notes 

pls check videos aiimiit uploaded

displacement and double displacement

exothermic and endothermic reactions

oxidation and reduction

ease