JEE Main 2022 · 25 Jun · Shift 1 · Chemistry Q75

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ChemistrySingle correct+4 / -1Question 75 of 90

The major product in the reaction
$\mathrm{(CH_3)_3C\text{-}Cl+\overset{+}{K}\,\overset{-}{O}\text{-}C(CH_3)_3\longrightarrow\ ?}$
is :

t

-Butyl ethyl ether

2,2-Dimethyl butane

2-Methyl pent-1-ene

2-Methyl prop-1-ene

Answer and worked solution

Official answer: D

Tertiary halide with a bulky strong base. Substitution is blocked; potassium tert-butoxide removes a β-H (E2), giving $\mathrm{(CH_3)_2C=CH_2}$ , 2-methylprop-1-ene.

(D)

Topics:Elimination reactions

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JEE Main 2022 · 25 Jun · Shift 1, Chemistry question 75