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The chemical equations are balanced to s...

The chemical equations are balanced to satisfy one of the following laws in chemical reactions. This law is known as :

A

law of conservation of momentum

B

law of conservation of mass

C

law of conservation of motion

D

law of conservation of magnetism

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The correct Answer is:
B
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LAKHMIR SINGH & MANJIT KAUR-CHEMICAL REACTIONS AND EQUATIONS -Exercise
  1. Which of the following is not an endothermic reaction ?

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  2. One of the following is an exothermic reaction. This is

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  3. The chemical equations are balanced to satisfy one of the following la...

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  4. When the solution of substance X is added to a solution of potassium i...

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  5. When water is added gradually to a white solid X, a hissing sound is h...

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  6. When metal X is treated with a dilute acid Y, then a gas Z is evolved ...

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  7. A silver-white metal X taken in the form of ribbon, when ignited, burn...

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  8. A metal X forms a salt XSO(4). The sale XSO(4) forms a clear solution ...

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  9. The metal M reacts vigorously with water to from a solution S and a ga...

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  10. When a mixture of gases X and Y is compressed to 300 atm pressure and ...

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  11. The white solid compound A decomposes quite rapidly on heating in the ...

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  12. Gas A, which is the major cause of global warming, combines with hydro...

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  13. What type of reaction is represented by the digestion of food in our b...

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  14. Name the various types of chemical reactions.

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  15. Why does the colour of copper sulphate solution change when an iron na...

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  16. Write the balanced chemical equation for the following reaction: Zin...

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  17. Which term is used to indicate the development of unpleasant smell and...

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  18. What is the general name of the chemicals which are added to fat and o...

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  19. State an important use of decomposition reactions.

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  20. What are anti-oxidants ? Why are they added to fat and oil containing ...

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