A) Lucas reagent
B) Tollen's reagent
C) lodoform test
D) Phenyl hydrazine
Correct Answer: B
Solution :
Aldehyde and ketones can be distinguished by using of Tollen's reagent. \[C{{H}_{3}}CHO+\underset{Tollen's\,reagent}{\mathop{A{{g}_{2}}O}}\,\xrightarrow{{}}C{{H}_{3}}COOH\] \[\underset{Silver\,mirror}{\mathop{+Ag\downarrow }}\,\] \[C{{H}_{3}}COC{{H}_{3}}+A{{g}_{2}}O\xrightarrow[{}]{{}}no\,reaction.\] Lusas test is given by alcohols. Both acetaldehyde and acetone react with\[{{I}_{2}}\] and\[NaOH\]give iodoform. Both aldehydes and ketones react with phenyl hydrazine gives hydrazone.
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