Aldehydes Ketones Question 120

Question: Acetaldehyde cannot show

[AIIMS 1997]

Options:

A) Iodoform test

B) Lucas test

C) Benedict’s test

D) Tollen’s test

Show Answer

Answer:

Correct Answer: B

Solution:

$ 1^{o}Primaryalcohol\xrightarrow{ZnCl_2/HCl} $ White turbidity only heating $ 2^{o}Alcohol\xrightarrow{ZnCl_2/HCl} $ White turbidity after 5 min heating $ 3^{o}Alcohol\xrightarrow{ZnCl_2/HCl} $ easily in seconds