1.

Assertion. Ag andAuare extractedby leachingtheir ores witha dilute solutionof NaCN. Reason. Impuritiesassociated with theseores dissolvesin NaCN.

Answer»

Ifbothassertionandreasonaretrue, andreason is notthe trueexplanationofthe ASSERTION.
Ifbothassertionandreasonaretrue,butreasonis notthetrueexplanationoftheassertion.
Ifassertionis true,butreason isfalse
If bothassertionandreasonarefalse

SOLUTION :CORRECTREASON. Ag and Au dissolve in NaCNsolution TOFORM theirsolublecomplexes.


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