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List – I List – II
A) Dehydro halogenation 1) $N a + C_{2} H_{5} O H$
B) Dehalogenation 2) conc. $H_{2} S O_{4}$
C) Dehydration 3) aq. KOH
D) Hydrolysis 4) alc. KOH
5) Ethanolic zinc
The correct match is

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A - 2, B - 5, C - 1, D - 3

A - 4, B - 5, C - 2, D - 3

A - 1, B - 5, C - 2, D - 3

A - 3, B - 5, C - 4, D - 2

answer is B.

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Detailed Solution

Conc. H₂SO₄ is used to remove water, so H₂SO₄ is dehydrating agent.

Alc. KOH is used to remove HX from any compound to form alkene, so it is a dehydrohalogenating agent.

Ethanolic zinc dust is used to remove X₂, so it is a dehydrogenating agent.

Aq. KOH contains large quantity of water, which is useful in hydrolysis reactions.

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