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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Hybridisation of carbon $a, b$ and $c$ respectively are :

Assertion $(A)$: There is a considerable increase in covalent radius from $\mathrm{N}$ to $\mathrm{P}$. However from $As$ to $Bi$ only a small increase in covalent radius is observed.
Reason $(R)$: covalent and ionic radii in a particular oxidation state increases down the group.
In the light of the above statement, choose the most appropriate answer from the options given below:
If molar mass of hydrochloric acid is $M.$