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Q.

Which of the following compounds is expected to be coloured ?

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a

CuF2

b

Ag2SO4

c

MnCl2

d

CuCl

answer is B, C.

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Detailed Solution

In CuCl Cu+ has fully filled d sub shell. Hence it cannot absorb energy ford-d transition,

in silver sulphate silver is in +1 oxidation state ,it does not contain unpaired electron hence it is colourless.

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