Question

The optically inactive compound among the following is

• A. hexaamminecobalt $(III)$ chloride
• B. cis-Dichlorido bis(ethane- $1$ , $2$ -diamine) cobalt $(III)$ chloride
• C. tris(ethane $-1$ , $2$ -diamine) cobalt $(III)$ chloride
• D. potassium trioxalatocobaltate $(III)$

Answer 1

Answer: (A)

hexaamminecobalt $(III)$ chloride

Answer 2

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Hexaamminecobalt (III) chloride
(optically inactive)

cis-Dichloridobis (ethane-$1$, $2$-diamine) cobalt (III) chloride (optically active)

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Tris (ethane-1,2-diamine) cobalt (III) chloride (optically active)

Potassium trioxalatocobaltate (III) (optically active)