What do you mean by dehydrohalogenation?
(N/A) Dehydrohalogenation is the elimination reaction in which a hydrogen atom and a halogen atom are removed from adjacent carbon atoms of an alkyl halide to form an alkene. The general reaction is: $R-CH_2-CH(X)-R' + KOH (\text{alc.}) \rightarrow R-CH=CH-R' + KX + H_2O$.
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Which one of the following will be most reactive for $SN^1$ reaction?
$A$ dihalogen derivative $X$ of a three-carbon hydrocarbon reacts with alcoholic $KOH$ to give another hydrocarbon,which gives a red precipitate with ammoniacal $Cu_2Cl_2$. Reaction of $X$ with aqueous $KOH$ gives an aldehyde. The compound $X$ is .......
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View SolutionIn the following reaction $C_{6}H_{5}CH_{2}Br \xrightarrow[(ii)H_{3}O^{+}]{(i)Mg, \text{Ether}} X$
Product $X$ is
Product $X$ is
Medium
View SolutionThe decreasing order of reactivity of the following compounds towards nucleophilic substitution $(S_{N}2)$ is :
Which of the following compounds gives a racemic mixture on nucleophilic substitution?
$(a)$ $CH_3-CH(Br)-C_2H_5$
$(b)$ $CH_3-C(Br)(CH_3)-C_2H_5$
$(c)$ $C_2H_5-CH(C_2H_5)-CH_2Br$
$(a)$ $CH_3-CH(Br)-C_2H_5$
$(b)$ $CH_3-C(Br)(CH_3)-C_2H_5$
$(c)$ $C_2H_5-CH(C_2H_5)-CH_2Br$
Medium
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