JEE MAIN - Chemistry (2025 - 8th April Evening Shift - No. 18)
Which one of the following reactions will not lead to the desired ether formation in major proportion?
(iso- $\mathrm{Bu} \Rightarrow$ isobutyl, sec $-\mathrm{Bu} \Rightarrow$ sec-butyl, $\mathrm{nPr} \Rightarrow \mathrm{n}$-propyl, $$ { }^{\mathrm{t}} \mathrm{Bu} \Rightarrow \text { tert-butyl, } \mathrm{Et} \Rightarrow \text { ethyl) } $$
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iso- $\mathrm{Bu} \overline{\mathrm{O}} \stackrel{+}{\mathrm{Na}}+\mathrm{sec}-\mathrm{BuBr} \longrightarrow$ sec- $\mathrm{Bu}-\mathrm{O}-$ iso -Bu
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${ }^{\mathrm{t}}\mathrm{Bu}\overline{\mathrm{O}} \stackrel{+}{\mathrm{Na}}+\mathrm{EtBr} \longrightarrow{ }^{\mathrm{t}} \mathrm{Bu}-\mathrm{O}-\mathrm{Et}$
Explanation
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