Which of the following,upon treatment with te | vedclass

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(A) Bromine water is decolourized by compounds containing carbon-carbon double or triple bonds (unsaturation) due to electrophilic addition.Treatment

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(A) Bromine water is decolourized by compounds containing carbon-carbon double or triple bonds (unsaturation) due to electrophilic addition.Treatment with $tert-BuONa$ (a strong base) typically induces elimination reactions $(E2)$ in alkyl halides to form alkenes.Option $A$ is cyclohexyl bromomethyl ether. Treatment with $tert-BuONa$ leads to substitution (Williamson ether synthesis) rather than elimination because the $\beta$-carbon lacks hydrogens,resulting in a saturated ether that does not react with bromine water.Options $B$,$C$,and $D$ contain $\beta$-hydrogens and undergo elimination to form alkenes,which will decolourize bromine water.

Which of the following,upon treatment with $tert-BuONa$ followed by addition of bromine water,fails to decolourize the colour of bromine?

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