1.

In the following question, a statement of assertion is followed by a statement of reason . Mark the correct choice.Assertion :[Cu(NH_(3))_(4)]^(2+)is coloured while[Cu(CN)_(4)]^(3-)is colourless . Reason :[Cu(NH_(3))_(4)]^(2+) hasdsp^(2)hydridisation

Answer»

Both ASSERTION and reason are true and reason is the CORRECT explanation of assertion .
Both assertion and reason are true but reason .Is not the correct explanation of assertion.
Assertion is true but reason is false.
Both assertion and reason are false.

ANSWER :B


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