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Give one example each of (i) change in s...

Give one example each of (i) change in state (ii) evolution of a gas.

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DINESH PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS -Very Short Answer Questions
  1. What is meant by thermal decomposition reaction ? Explain with an exam...

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  2. {:(X + Y SO(4) to X SO(4) + Y),(Y + X SO(4) to "No reaction"):} Of t...

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  3. Write a complete balanced chemical equation for the following reaction...

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  4. On heating copper powder in air, the surface of copper powder becomes ...

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  5. Write the essential condition for the following reaction to take place...

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  6. Write the chemical formula of rust.

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  7. Give an example of photochemical reaction.

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  8. What is combination reaction ? Give an example.

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  9. What happens when carbon dioxide gas is bubbled through lime water in ...

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  10. Identify the oxidising and reducing agent in the following reaction : ...

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  11. Write balanced chemical equation for the following reaction : Natura...

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  12. Give one example each of (i) change in state (ii) evolution of a gas.

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  13. Why does silver chloride turn grey in sunlight ?

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  14. Name two metals which donot get corroded.

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  15. What is double displacement reaction ? Give one example.

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  16. Can combination reaction be an oxidation reaction ? If yes, give an ex...

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  17. What is the nature of reaction when sulphuric acid is dilutes with wat...

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  18. A small amount of ferrous sulphate was heated in a hard glass test tub...

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  19. Write a balanced equation for a chemical reaction that can be characte...

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  20. What happens chemically when quick lime is added to water ?

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