A) \[{{C}_{2}}{{H}_{2}}\]and\[C{{H}_{3}}CHO\]
B) \[C{{H}_{4}}\]and\[HCOOH\]
C) \[{{C}_{2}}{{H}_{4}}\]and\[C{{H}_{3}}COOH\]
D) \[{{C}_{2}}{{H}_{2}}\] and\[C{{H}_{3}}COOH\]
Correct Answer: A
Solution :
\[CaCa+2{{H}_{2}}\text{O}\xrightarrow{{}}\underset{(A)}{\mathop{Ca{{H}_{2}}}}\,+Ca{{(OH)}_{2}}\] \[\underset{\begin{smallmatrix} CH \\ (A) \\ acetylene \end{smallmatrix}}{\overset{CH}{\mathop{|||}}}\,\xrightarrow[{}]{Dil.\,{{H}_{2}}S{{O}_{4}}/HgS{{O}_{4}}}\underset{CHOH}{\overset{\,\,\,\,\,\,CH}{\mathop{||}}}\,\xrightarrow{{}}\]\[\underset{\begin{smallmatrix} acetaldehyde \\ \,\,\,\,\,\,\,\,(B) \end{smallmatrix}}{\mathop{C{{H}_{3}}CHO}}\,\]
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