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Question

EAN of Cr in [Cr(NH3)6] Cl3 is:

A
32
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B
33
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C
34
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D
35
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Solution

The correct option is B 33

Cr is in +3 oxidation state.
EAN = Atomic number - oxidation state + 2 × Number of ligands
= 24 - 3 + 2 × 6 = 33


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