Question

Assertion (A) In the coordination compound $\left[ Co \left( H _{2} NCH _{2} CH _{2} NH _{2}\right)_{3}\right]_{2}$, ethane-1,2-diammine is a neutral molecule.
Reason (R) Oxidation number of $Co$ in the complex ion is $+3$.

• A. Both $A$ and $R$ are correct; $R$ is the correct explanation of $A$.
• B. Both $A$ and $R$ are correct; $R$ is not the correct explanation of $A$.
• C. $A$ is correct; $R$ is incorrect.
• D. $R$ is correct; $A$ is incorrect.

Answer 1

Answer: (B)

Ethan-$1, 2$-diammine is a neutral molecule.as it carries no charge. Oxidation number of $Co$ in the complex ion is $+3$.