JEE Main 2022 (29 Jun, Shift 2) Chemistry Q75: Two isomers…

Question

Two isomers (A) and (B) with Molar mass 184 g/mol and elemental composition C, 52.2% ; H, 4.9 % and Br 42.9%, respectively on oxidation with $\mathrm{KMnO_4}$. Isomer ‘A’ is optically active and gives a pale yellow precipitate when warmed with alcoholic $\mathrm{AgNO_3}$. Isomer ‘A’ and ‘B’ are, respectively

Accepted Answer

Option 3: $\mathrm{H_3C-CHBr-C_6H_5}$ and [figure: six-membered ring (drawn with alternating double bonds) with a $\mathrm{CH_2CH_3}$ group and a Br on opposite ring carbons]

Answer

$\mathrm{H_3C-CHBr-C_6H_5}$ and [figure: six-membered ring (drawn with alternating double bonds) with a $\mathrm{CH_2Br}$ group and a $\mathrm{CH_3}$ group on adjacent ring carbons]

Answer

[figure: six-membered ring (drawn with alternating double bonds) with a $\mathrm{CH_2Br}$ group and a $\mathrm{CH_3}$ group on adjacent ring carbons] and [figure: six-membered ring (drawn with alternating double bonds) with a $\mathrm{CH_2CH_3}$ group and a Br on opposite ring carbons]

Answer

$\mathrm{H_3C-CHBr-C_6H_5}$ and [figure: six-membered ring (drawn with alternating double bonds) with a $\mathrm{CH_2CH_3}$ group and a Br on opposite ring carbons]

Answer

[figure: six-membered ring (drawn with alternating double bonds) with a $\mathrm{CH_2CH_3}$ group and a Br on opposite ring carbons] and $\mathrm{H_3C-CHBr-C_6H_5}$

JEE Main 29 June 2022, Shift 2, Chemistry Q75

Same idea in other shifts