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STATEMENT-1 : Zince and not copper is us...

STATEMENT-1 : Zince and not copper is used in the recovery of silver from the complex `[Ag(CN)_(2)]^(-)`
and
STATEMENT-2 : Zince is more powerful oxidising agent than copper.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1

B

Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explanation for Statement-1

C

Statement-1 is True, Statement-2 is False

D

Statement-1 is False, Statement-2 is True

Text Solution

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Why is Zn but not copper used for the recovery of Ag from its cyanide complex [Ag(CN)_(2)]^(-)

Assertion : Zinc is used for the recovery of silver from the complex [Ag(CN)_(2)]^(-) Reason : Zinc is more electropositive than silver and is a better reducing agent.

Answer the following questions briefly. (i) What is the actual reducing agent of haematite in blast furnace ? (ii) Give the equations for the recovery of lead from galena by air reduction. (iii) Why is sodium chloride added during electrolysis of fused anhydrous magnesium chloride. (iv) Zinc, not copper, is used for the recovery of metallic silver from the complex [Ag(CN)_(2)] . Explain. (v) Why is chalcocite roasted and not calcinated during recovery of copper ?