MCQ
The chirality of the compound


- ✓$R$
- B$S$
- C$Z$
- D$E$


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$^{200}X \,:\, 90\%$ $^{199}X\, :\, 8.0\%$ $^{202}X\, :\, 2.0\%$
The weighted average atomic mass of the naturally occurring element $X$ is closest to......$amu$
| Item $I$ | Item $II$ |
| $(a)$ Benzaldehyde | $(p)$ Mobile phase |
| $(b)$ Alumina | $(q)$ Adsorbent |
| $(c)$ Acetonitrile | $(r)$ Adsorbate |
$(a)$ Diborane is prepared by the oxidation of $\mathrm{NaBH}_{4}$ with $\mathrm{I}_{2}$.
$(b)$ Each boron atom is in sp $^{2}$ hybridized state.
$(c)$ Diborane has one bridged $3$ centre$-2-$electron bond.
$(d)$ Diborane is a planar molecule.
The option with correct statement(s) is :