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प्रश्न
What is the action of following on ethyl bromide?
alcoholic sodium hydroxide
उत्तर
When ethyl bromide is boiled with an alcoholic solution of sodium hydroxide \[\ce{(NaOH)}\], an alkene is formed due to the elimination of hydrogen atoms from carbon and halogen from α-carbon, which is called dehydrohalogenation.
\[\ce{\underset{(Ethyl bromide)}{\overset{\beta\phantom{.............}\alpha\phantom{............}}{CH3 - CH2 - Br}} + \underset{(alc.)}{NaOH} ->[\Delta] \underset{(Ethene)}{CH2 = CH2} + NaBr + H2O}\]
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\[\begin{array}{cc}
\ce{CH3}\phantom{.......}\\
|\phantom{.........}\\
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|\phantom{.........}\\
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\[\begin{array}{cc}
\ce{CH3}\phantom{................}\\
|\phantom{...................}\\
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|\phantom{...................}\\
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\[\begin{array}{cc}
\ce{CH3}\phantom{................}\\
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|\phantom{..................}\\
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\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
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\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
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|\phantom{...................}\\
\ce{CH3}\phantom{.................}\\
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