A) ester of unsaturated acid
B) ester of saturated acid
C) R in the\[COOH\]of ester is an unsymmetrical radical
D) ester does not form at all
Correct Answer: A
Solution :
When acetylene reacts with CO and\[{{C}_{2}}{{H}_{5}}OH\]in the presence of Ni, an unsaturated ester is formed. \[HC\equiv CH+CO+{{C}_{2}}{{H}_{5}}OH\xrightarrow[{}]{Ni}\]\[\underset{\begin{smallmatrix} \,\,\,\,\,\,ethyl\text{ }acrylate \\ (unsaturated\text{ }ester) \end{smallmatrix}}{\mathop{C{{H}_{2}}=CHCOO{{C}_{2}}{{H}_{5}}}}\,\]
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