MCQ
$A\xrightarrow{{}}{(C{H_3})_2}C = CHCOC{H_3}\,\,\,\,A$ is
- ✓Acetone
- BAcetaldehyde
- CPropionaldehyde
- DFormaldehyde
✓
Answer
Correct option: A.
Acetone
a
(a)Two molecules of acetone condense in presence of dry $HCl$ gas to form mesityl oxide.
(a)Two molecules of acetone condense in presence of dry $HCl$ gas to form mesityl oxide.
$\begin{array}{*{20}{c}}
{C{H_3}} \\
{C{H_3}}
\end{array} > C = O\, + \,$ $\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,O} \\
{\,\,\,\,\,\,\,\,\,\,\,\,||} \\
{{H_2} - CH - C - C{H_3}}
\end{array}$ $\xrightarrow[{ - \,{H_2}O}]{{HCl}}$ $\mathop {{{(C{H_3})}_2}C = CH.COC{H_3}}\limits_{Mesityl\,\,oxide} $
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The compound$(s)$ that exhibit$(s)$ geometrical isomerism is$(are)$
→$(A)$ $\left[\mathrm{Pt}(\mathrm{en}) \mathrm{Cl}_2\right]$ $(B)$ $\left[\mathrm{Pt}(\mathrm{en})_2\right] \mathrm{Cl}_2$
$(C)$ $\left[\mathrm{Pt}(\text { en })_2 \mathrm{Cl}_2\right] \mathrm{Cl}_2$ $(D)$ $\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}_2\right]$
The osmotic pressure exerted by a solution prepared by dissolving $2.0\, g$ of protein of molar mass $60\, kg\, mol ^{-1}$ in $200\, mL$ of water at $27^{\circ} C$ is $.....Pa$. [integer value]
→(use $R =0.083 L\,bar\,mol ^{-1}\, K ^{-1}$ )
Aqua regia is a mixture of
Oxygen is denser than air so it is collected over
Given below are two statements:
→Statement $I$: The boiling point of hydrides of Group $16$ elements follow the order
$\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{Te}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{~S}$.
Statement $II$: On the basis of molecular mass, $\mathrm{H}_2 \mathrm{O}$ is expected to have lower boiling point than the othe members of the group but due to the presence of extensive $\mathrm{H}$-bonding in $\mathrm{H}_2 \mathrm{O}$, it has higher boiling point.
In the light of the above statements, choose the correct answer from the options given below:
Fructose and glucose can be distinguished by
An aqueous solution of $2\%$ non volatile solute exerts a pressure of $1.004\, bar$ at the normal boiling point of the solvent. ......... $g/mol$ is the molar mass of the solute.
→is
The freezing point of a $0.05\, m \,BaCl_2$ solution in water ($100\%$ ionisation) is about $(K_f = 1.86\, km^{-1})$
→The percentage of formaldehyde in formalin is: