1.
\[\underset{\left( A \right)}{\mathop{3C{{H}_{3}}COC{{H}_{3}}}}\,\xrightarrow[-{{H}_{2}}O]{HCl}\] $${\left( {C{H_3}} \right)_2}C = CH - \mathop {CO}\limits_{\left( B \right)} - CH$$ $$ = C{\left( {C{H_3}} \right)_2}$$
This polymer $$(B)$$ is obtained when acetone is saturated with $$HCl$$ gas, $$B$$ can be
Phorone is self condensation product of acetone. It can also be obtained from certain camphor compound. Phorone is combustible when exposed to heat or flame.
2.
$${\left( {C{H_3}} \right)_2}C = CHCOC{H_3}$$ can be oxidised to $${\left( {C{H_3}} \right)_2}C = CHCOOH$$ by
Haloform reaction,
$${\left( {C{H_3}} \right)_2}C = CHCOC{H_3}$$ contains unit so it can be oxidised to $${\left( {C{H_3}} \right)_2}C = CH - COOH$$ by $$NaOI.$$
3.
Which of the following compounds will undergo self aldol condensation in the presence of cold dilute alkali?
Since $$C{H_3}C{H_2}CHO$$ has $$\alpha $$ - hydrogen atom, therefore it will undergo aldol condensation in the presence of cold dilute alkali.
4.
Identify $$(X), (Y)$$ and $$(Z)$$ reagents in the given sequence of reactions.
\[CH\equiv CH\xrightarrow{X}C{{H}_{3}}CHO\] \[\xrightarrow{Y}C{{H}_{3}}CH\left( OH \right)C{{H}_{3}}\] \[\xrightarrow{Z}C{{H}_{3}}COC{{H}_{3}}\]
1 - Phenylethanol is a \[{{2}^{\circ }}\] alcohol and can be prepared by the reaction of benzaldehyde with Grignard reagent \[C{{H}_{3}}MgI.\]
8.
An alcohol $$(A)$$ on dehydration gives $$\left( B \right)$$ which adds bromine molecule to give $$(C).$$ $$(C)$$ on heating with sodamide gives $$(D)$$ which on hydration in the presence of $$\frac{{H{g^{2 + }}}}{{{H_2}S{O_4}}}$$ gives $$(E).$$ $$(E)$$ on reduction by lithium aluminium hydride gives $$(A).$$ $$(E)$$ is also obtained on dry distillation of calcium salt of acetic acid. How many enolisable proton present in the product $$(E)?$$