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Dehydrohalogenation of Dihalides

What is the r...

Question

What is the reagent used in the above reaction?

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HCl and H₂O

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KOH in C₂ H₅ OH

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Solution

The correct option is C
KOH in C₂ H₅ OH

(c) $R - C H_{2} - C C l_{2} - R K O H + C_{2} H_{5} O H - -------------- \to R - C \equiv C - R + 2 H C l$

This reaction is an example of dehydrohalogenation.

Hence, alcoholic KOH is used as a reagent.

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Similar questions

R - C H_{2} - C C l_{2} - R ⟶ R - C H = C C l - R

Complete and balance the following reactions.

(a) $N a + H_{2} O \to$ _________ + _________

(b) $C a + H_{2} O \to$ __________+_________

(d) $Z n + H_{2} O \to$ ___________+_________

(e) $F e + H_{2} O \to$ ____________+_________

(f) $Z n + H C l \to$ _____________+__________

(g) $A l + H_{2} S O_{4} \to$ __________+_________

(h) $F e + H C l \to$ ___________+____________

(i) $Z n + N a O H \to$ __________+____________

(j) $A l + K O H + H_{2} O$ _________+____________

R_{1}

R_{2}

C H_{3} - C H_{2} - C l R_{1} - \to A R_{2} - \to C H_{3} - C H_{3}

H_{2}

{C O}_{3}^{2 -} + H_{2} O ⇌ {H C O}_{3}^{-} + {O H}^{-}

{C O}_{2} + H_{2} O ⇌ H_{2} {C O}_{3}

{N H}_{3} + H_{2} O ⇌ {N H}_{4} O H

H C l + H_{2} O ⇌ {C l}^{-} + H_{3} O^{+}

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