A) \[C{{H}_{3}}C{{H}_{2}}OH\]
B) \[C{{H}_{2}}=C{{H}_{2}}\]
C) \[HC\equiv CH\]
D) All of these
Correct Answer: B
Solution :
[b] Ethanal is commerically prepared by one step .oxidation of ethene in the presence of ionic catalyst in aqueous medium with an yield of 90%. \[C{{H}_{2}}=C{{H}_{2}}+{{O}_{2}}\xrightarrow[\begin{smallmatrix} pb(II)Cu(II) \\ (in\,water) \end{smallmatrix}]{Catalyst}C{{H}_{3}}CHO\]
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