MCQ
Chemistry is sometimes called as :
- ABiological Science
- ✓Central Science
- CBiochemistry
- DBoth $A$ and $C$
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$(A) \,2p_y +2p_y \to \pi-$ Bond formation
$(B) \,2p_x + 2p_x \to \sigma-$ Bond formation
$(C)\, 3d_{xy} + 3dp_{xy} \to \pi$ -Bond formation
$(D)\, 2s + 2p_y \to \pi-$ Bond formation
$(E)\, 3d_{xy} + 3d_{xy} \to \delta -$ Bond formation
$(F)\, 2p_s + 2p_s \to \sigma-$ Bond formation
[Given : $p K _{ a 1}$ and $p K _{ a 2}$ of $H _2 CO _3$ are $6.37$ and $10.32 $, respectively $; \log 2=0.30$ ]
$C{H_2} = C{H_2}\xrightarrow{{HBr}}X\xrightarrow[{{I_2}(excess)}]{\begin{subarray}{l}
Hydrolisis \\
N{a_2}C{O_3}
\end{subarray} }Z$
