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A copper plate was dipped into a solutio...

A copper plate was dipped into a solution of silver nitrate . After sometime , a black layer was observed on the surface of copper plate. State the reason for it and write chemical equation of the reaction involved.

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Black layer was deposited due to coating of silver, because copper being more reactive than silver , displaced silved from silver nitrate solution.
`2AgNO_(3)(aq)+Cu rarr Cu (NO_(3))_(2)(aq)+2Ag(s)`
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OSWAAL PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-TOPIC-1 (Chemical Reactions and Equations) (SHORT ANSWER TYPE QUESTIONS-I)
  1. In test-tubes A and B , zinc sulphate solution and silver nitrate sol...

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  2. Write the balanced chemical equations for the following chemical react...

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  3. Which coloured fumes are obtained when lead nitrate is heated ? Write ...

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  4. List four observation that helps us to determine whether a chemical re...

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  5. (i) State the law which is followed in balancing a chemical equation ....

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  6. What is observed when carbon dioxide gas is passed through lime water....

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  7. A copper plate was dipped into a solution of silver nitrate . After so...

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  8. When iron rod is kept dipped in copper sulphate solution for some t...

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  9. When Hydrogen gas is passed over heated copper (II) oxide, copper and...

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  10. Write the skeletal equation for the following reactions: (i) Hydrog...

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  11. Translate the following statement into chemical equation and then bala...

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  12. State what happens when zinc granules are heated with sodium hydroxide...

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  13. Give reactions of calcium and magnesium with dilute nitric acid.

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  14. Write balanced chemical equations for the following reactions: (i) S...

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  15. In a test-tube, hydrochloric acid is poured over a few zinc granules. ...

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  16. Convert the following statements into balanced chemical equations: (...

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