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Name the gas evolved when zinc reacts wi...

Name the gas evolved when zinc reacts with dil. HCI

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Hydrogen gas is evolved.
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CPC CAMBRIDGE PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-ADDITIONAL QUESTIONS (Anwers the following questions)
  1. What happens when magnesium ribbon burns in air?

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  2. Name the gas evolved when zinc reacts with dil. HCI

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  3. What is chemical equation ?

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  4. On what chemical law, balancing of chemical equation is based?

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  5. Represent decomposition of ferrous sulphate with the help of a chemica...

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  6. When carbon dioxide is passed through lime water, it turns milky. Why?

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  7. A Zinc rod is left for nearly 20 minutes in Copper sulphate solution. ...

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  8. What type of reaction is this : Na(2)SO(4)+BaCl(2) to BaSO(4)+2NaCl

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  9. Why do gold and silver do not corrode ?

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  10. Name the reduching agent in the following reaction. 3MnO(2)+4Al to 2...

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  11. Write the balanced chemical equation for process of photosynthesis. ...

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  12. 2g of ferrous sulphate crystals are heated in a dry tude. List any t...

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  13. Why are decomposition reactions called the opposite of combination rea...

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  14. Write the type of chemical reaction in the following. reaction betwe...

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  15. Why does a copper vessel devlop with green coating in rainy season ?

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  16. Why is hydrogen proxide kept in coloured bottles ?

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  17. Mention any two factors which influence the rate of the reaction.

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  18. Ahmad took a magnesium ribbon and burned it on a flame. The white powd...

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  19. An iron knife kept dipped in a blue copper sulphate solution turns the...

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  20. Identify the reducing agent in the following reaction : Fe(2)O(3)+3C...

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