MCQ
$C_6H_{13}Br + OH^- \to C_6H_{13}OH + Br^-$ is an example of
- ANucleophilic addition
- ✓Nucleophilic substitution
- CElectrophilic addition
- DElectrophilic substitution
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$N{H_3}(g) \rightleftharpoons \frac{1}{2}{N_2}\left( g \right) + \frac{3}{2}{H_2}(g);{K_p}$
The degree of dissociation $(\alpha )$ of $NH_3$ is related to total equilibrium pressure $(P^o)$ as
$A$. They exhibit high enthalpy of atomization as the d-subshell is full.
$B$. $\mathrm{Zn}$ and $\mathrm{Cd}$ do not show variable oxidation state while $\mathrm{Hg}$ shows $+\mathrm{I}$ and + $II.$
$C$. Compounds of $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ are paramagnetic in nature.
$D$. $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ are called soft metals.
Choose the most appropriate from the options given below: