1.

Assertion (A) : Au and Ag are extracted by leaching their ores with a dil. Solution of NaCN. Reason (R ) : Impurities associated with these ores dissolve in NaCN.

Answer»

Both Assertion (A) and Reason (R ) are correct statements, and Reason (R ) is the correct EXPLANATION of the Assertion (A).
Both Assertion (A) and Reason (R ) are correct statements, but Reason (R ) is not the correct explanation of the ASSERITON (A).
Assertion (A) is correct, but Reason (R ) is incorrect STATEMENT.
Assertion (A) is incorrect, but Reason (R ) is correct statement.

Answer :C


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