Q.

Compounds of transition metals are generally coloured. Improper match regarding colour of these compounds is

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a

MnO2 – black

b

K2MnO4- Green

c

ZnSO4 -  colourless

d

K2Cr2O7 – yellow

answer is D.

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Detailed Solution

K2Cr2O7 – orange
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Compounds of transition metals are generally coloured. Improper match regarding colour of these compounds is