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Question: The oxidation state of \(Cr\) in \(\lbrack Cr(NH_{3})_{4}Cl_{2}\rbrack^{+}\) is....

The oxidation state of CrCr in [Cr(NH3)4Cl2]+\lbrack Cr(NH_{3})_{4}Cl_{2}\rbrack^{+} is.

A

+3

B

+2

C

+1

D

0

Answer

+3

Explanation

Solution

[Cr(NH3)4Cl2]+\left\lbrack Cr(NH_{3})_{4}Cl_{2} \right\rbrack^{+}

x+4×(0)2=1x + 4 \times (0) - 2 = 1x+02=1x + 0 - 2 = 1

x = 1 + 2 = + 3.