MCQ
The compound containing asymmetric carbon atom is :
- A$C _6 H _5 CH _2 COOH$
- B$HOOC \left( CH _2\right)_2 COOH$
- C$HO \left( CH _2\right)_2 OH$
- ✓$HOOCCH ( OH ) CH _2 COOH$
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Which of following can be used as a catalyst in the above reaction?

$CH_3 -C\equiv C-H$ $\xrightarrow{{C{H_3}MgBr}}$ $CH_4+(A)$ $\mathop {\xrightarrow{{(i)\,C{O_2}}}}\limits_{(ii)\,{H_2}O/{H^ \oplus }} $ $(B)$
$(B)$ will be :

Reason $(R)$: $\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}$complex ion has an octahedral geometry.
In the light of the above statements, choose the most appropriate answer from the options given below :