Which of the following gives +ve test with Tollens reagent?
A
HCHO
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B
CH3CHO
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C
PhCHO
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D
CH3COCH3
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Solution
The correct options are A HCHO BCH3CHO C PhCHO Tollens' reagent is a chemical reagent most commonly used to determine whether a known carbonyl-containing compound is an aldehyde or alpha-hydroxy ketone.