Aldehydes Ketones Question 197
Question: Which of the following is used to detect aldehydes
[MHCET 2004]
Options:
A) Million’s test
B) Tollen’s reagent
C) Neutral ferric chloride solution
D) Molisch’s test
Show Answer
Answer:
Correct Answer: B
Solution:
Tollen’s reagent is used to detect aldehydes. Aldehyde reduce Tollen’s reagent to give Silver mirror while these are oxidised to acid. $ \begin{matrix} R \\ H \\ \end{matrix}>C=O+Ag_2O\xrightarrow{{}}RCOOH+\underset{\text{Silver mirror}}{\mathop{2Ag}} $