A) sodium
B) \[NaOH/{{I}_{2}}\]
C) neutral \[FeC{{l}_{3}}\]
D) \[B{{r}_{2}}/{{H}_{2}}O\]
E) phthalic anhydride/cone.\[{{H}_{2}}S{{O}_{4}}\]and\[NaOH\]
Correct Answer: A
Solution :
Phenol cannot be distinguished from ethanol by sodium because both evolve hydrogen with sodium \[2{{C}_{6}}{{H}_{5}}OH+2Na\xrightarrow[{}]{{}}2{{C}_{6}}{{H}_{5}}ONa+{{H}_{2}}\uparrow \] \[2{{C}_{2}}{{H}_{5}}OH+2Na\xrightarrow[{}]{{}}2{{C}_{2}}{{H}_{5}}ONa+{{H}_{2}}\uparrow \]
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