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Identify the correct statements among th...

Identify the correct statements among the following
I) Both Cr and Cu show +1 oxidation state
II) The complementary colour of absorbed green colour of visible radiation is purple.
III) `Ni^(+2)` ion in its hydrated state exhibits green colour
IV) Devarda's alloy contains least percentage of 'Zn

A

All

B

I,II,III only

C

I,IV only

D

I, III only

Text Solution

Verified by Experts

The correct Answer is:
A
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