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Chemistry · 2023 · 2 marks
Haloalkanes and HaloarenesChemical Reactions of Haloalkanes and Haloarenes2 marksApplyvery short answer
CBSE 2023 · Region 1 · Set 2 · Q24
(b) CH_3 CH_2 CH_2 Cl + KOH → ethanol 'A' → HBr 'B' Identify'A'and'B'in the above reactions.
(a)
(b)
$\displaystyle \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{Cl}+\mathrm{KOH} \xrightarrow{\text { ethanol }}$'A'$\displaystyle \xrightarrow{\mathrm{HBr}}$'B' Identify'A'and'B'in the above reactions.
Marking-scheme solution
(a)
A $\displaystyle =$ $\displaystyle \mathrm{CH_3-\underset{\overset{\textstyle|}{\textstyle\mathrm{Cl}}}{CH}-CH_3}$ / $\displaystyle 2$-Chloropropane
B $\displaystyle =$ $\displaystyle \mathrm{CH_3-\underset{\overset{\textstyle|}{\textstyle\mathrm{NC}}}{CH}-CH_3}$ / Isopropyl isocyanide / Propan-$\displaystyle 2$-isonitrile
(b)
A $\displaystyle =$ $\displaystyle \mathrm{CH_3-CH=CH_2}$ / Propene
B $\displaystyle =$ $\displaystyle \mathrm{CH_3-\underset{\overset{\textstyle|}{\textstyle\mathrm{Br}}}{CH}-CH_3}$ / $\displaystyle 2$-Bromopropane
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