VITEEE 2011 Paper

Section: Chemistry

Question : 60 of 120

Marks: +1, -0

Assertion (A) Cu2+ and Cd2+ are separated by first adding KCN solution and then passing H2S gas.
Reason (R) KCN reduces Cu2+ to Cu+ and forms a complex with it. The correct answer is

Both (A) and (R) are true and (R) is the correct explanation of (A)
Both (A) and (R) are true but (R) is not the correct explanation of (A)
(A) is true but (R) is not true
(A) is not true but (R) is true

Validate

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