MCQ
The optically inactive compound from the following is
- A$2 -$ chloropropanal
- B$2 -$ chlorobutane
- C$2 -$ chloropentane
- ✓$2 -$ chloro $- 2-$ methylbutane
$\underset{2-chloropropanol}{\mathop{\begin{matrix}
\,Cl\, \\
|\,\, \\
C{{H}_{3}}-C-CHO \\
|\,\, \\
H\, \\
\end{matrix}}}\,$ $\underset{2-chlorobu\tan e\,(chiral)}{\mathop{\begin{matrix}
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Cl \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\, \\
C{{H}_{3}}-C{{H}_{2}}-C-C{{H}_{3}} \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,| \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,H \\
\end{matrix}}}\,$
$\underset{(chiral)}{\mathop{\underset{2-chloropen\tan e}{\mathop{\begin{matrix}
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Cl \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,| \\
C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C-C{{H}_{3}} \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,| \\
\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,H \\
\end{matrix}}}\,}}\,$ $\underset{(achiral)}{\mathop{\underset{2-chloro-2-methylbu\tan e}{\mathop{\begin{matrix}
C{{H}_{3}} \\
| \\
C{{H}_{2}}-C-C{{H}_{3}} \\
| \\
Cl \\
\end{matrix}}}\,}}\,$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(A)$ The $pH$ of $1 \times 10^{-8}\,M\,HCl$ solution is $8$.
$(B)$ The conjugate base $H _2 PO _4^{-}$is $HPO _4{ }^{2-}$.
$(C)$ $K _{ w }$ increases with increase in temperature.
$(D)$ When a solution of weak monoprotic acid is titrated against a strong base at half neutralisation point, $pH =\frac{1}{2} pK _{ a }$
Choose the correct answer from the option given below.
(Given : Molar mass in $\mathrm{g} \mathrm{mol}^{-1}$ Ethyl alcohol : $46$,
water : $18$)