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Exam 2018 Chemistry question bank (Chemistry)

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Q1.

Identify $A, B$,and $C$ in the following reactions:
Isopropyl chloride $\xrightarrow{NaOH} A$ $\xrightarrow{Cu/573 \ K} B$ $\xrightarrow{NaOI} C + \text{Iodoform}$

(A)

$CH_3-CH_2-CH_2-OH, CH_3-CH_2-CHO, CH_3-CH_2-COONa$

(B)

$CH_3-CH_2-OH, CH_3-CHO, HCOONa$

(C)

$CH_3-CH(OH)-CH_3, CH_3-CO-CH_3, CH_3-COONa$

(D)

$CH_3-CH(OH)-CH_3, CH_3-CH_2-CHO, CH_3-COONa$

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Q2.

What are $X$ and $Y$ in the following reaction sequence?
$Propene$ $\xrightarrow{HBr} A$ $\xrightarrow[Dry \ ether]{Mg} B$ $\xrightarrow[2. H_3O^{+}]{1. X} Y$

(A)

$X$ = Pentan$-3-$one,$Y$ = $3-$ethyl$-2-$methylpentan$-3-$ol

(B)

$X$ = Pentan$-3-$one,$Y$ = $3-$ethyl$-2-$methylpentan$-3-$ol

(C)

$X$ = Pentan$-3-$one,$Y$ = $3-$ethyl$-2-$methylpentan$-3-$ol

(D)

$X$ = $2-$methylpentan$-3-$one,$Y$ = $3,4-$dimethylhexan$-3-$ol

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