A) Phenyl hydrazine
B) Hydroxylamine
C) Fehling solution
D) Sodium bisulphite
Correct Answer: C
Solution :
\[{{C}_{2}}{{H}_{5}}CHO+2C{{u}^{+2}}+5O{{H}^{-}}\to \underset{\operatorname{Re}d\,\,ppt}{\mathop{C{{u}_{2}}O}}\,+3{{H}_{2}}O\]\[+{{C}_{2}}{{H}_{5}}CO{{O}^{-}}\] \[C{{H}_{3}}COC{{H}_{3}}+2C{{u}^{+2}}+5O{{H}^{-}}\to \text{No}\,\,\text{reaction}\]
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