Q44 / 200 · Manipal (MET) 2011 · Chemistry

Which of the following is a wrong statement?

A
$\mathrm{Ni}(\mathrm{CO})_4$ has zero oxidation number for Ni
Correct answer
B
$\mathrm{Ni}(\mathrm{CO})_4$ has oxidation number +4 for Ni
C
Ni is metal
D
CO is gas

Solution

In $\left[\mathrm{Ni}(\mathrm{CO})_4\right]$, Ni has zero oxidation number.

Hence, the correct answer is option: 'B'.

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