A) but-1-ene
B) but-2-ene
C) propene
D) ethane
Correct Answer: B
Solution :
\[C{{H}_{3}}-\overset{H}{\mathop{\overset{\mathbf{|}}{\mathop{CH}}\,}}\,-\overset{OH}{\mathop{\overset{\mathbf{|}}{\mathop{CH}}\,}}\,-C{{H}_{3}}\xrightarrow[\Delta ]{{{H}_{2}}S{{O}_{4}}}C{{H}_{3}}-CH=\] \[CH-C{{H}_{3}}(80%)+C{{H}_{3}}-C{{H}_{2}}-CH=C{{H}_{2}}(20%)\] This is in accordance with Saytzeff rule.
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