MCQ
When acetaldehyde is heated with Fehling solution, it gives a red precipitate of
- A$Cu$
- B$CuO$
- ✓$C{u_2}O$
- D$Cu{(OH)_2}$
✓
Answer
Correct option: C.
$C{u_2}O$
c
(c) $C{H_3}CHO + \underbrace {2C{u^{ + 2}} + 5O{H^ - }}_{{\text{Fehling solution}}} \to C{H_3}CO{O^ - } + \mathop {C{u_2}O}\limits_{{\text{Red ppt}}{\text{.}}} + 3{H_2}O$
(c) $C{H_3}CHO + \underbrace {2C{u^{ + 2}} + 5O{H^ - }}_{{\text{Fehling solution}}} \to C{H_3}CO{O^ - } + \mathop {C{u_2}O}\limits_{{\text{Red ppt}}{\text{.}}} + 3{H_2}O$
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