(A) and (B) is differentiated by.

NaH

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2 - 4

DNA

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Tollen's reagent

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N a H S O_{3}

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Solution

The correct option is C Tollen's reagent

Alcohols are oxidized to respective carbonyl compounds on reaction with PCC.
(Refer to Image)
Tollen's reagent show positive to only aldehydes and show negative to ketones.

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The reagents which do not react with glucose are

I. Schiff's reagent II. Tollen's reagent III.Fehling's solution IV. NaHSO₃

N a_{2} C O_{3} S O_{2} - - \to (A) N a_{2} C O_{3} - ---- \to (B) S \to (C) A g N O_{3} - --- \to (D)

1^{\circ}

2^{\circ}

3^{\circ}

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