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Preparation of Haloalkanes from Alcohol

An unknown al...

Question

An unknown alky halide (A) reacts with alcoholic KOH to produce a hydrocarbon $C_{3} H_{8}$ Ozonolysis of the hydrocarbon forms one mole of propionaldehyde and one mole of formaldehyde. Suggest which organic structure among the following is the correct structure of the above alkyl halide (A) ?

{C H}_{3} {C H}_{2} {C H}_{2} {C H}_{2} B r

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{C H}_{3} C H (B r) C H (B r) {C H}_{3}

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{C H}_{3} {C H}_{2} C H (B r) {C H}_{3}

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{B r C H}_{2} {C H}_{2} {C H}_{2} B r

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Solution

The correct option is A ${C H}_{3} {C H}_{2} {C H}_{2} {C H}_{2} B r$
So answer is 1-bromo butane.

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