Aromatic Aldehydes Ketones and Acids - Result Question 20

####24. Positive Tollen’s test is observed for

(a)

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(b)

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(c)

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(d)

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Answer:

Correct Answer: 24. (a,b,c)

Solution:

  1. $R CHO+\quad Ag _2 O \quad \stackrel{OH^{-}}{\longrightarrow} R COOH+2 Ag$

$ \quad \quad \quad \quad \text { (Tollen’s reagent) } \quad \quad \quad \quad \text { Silver mirror } $

Tollen’s test is given by all aldehydes and all reducing sugars as glucose, fructose and $\alpha$-hydroxy ketones.

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