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Câu hỏi: Phenol không tác dụng với chất nào sau đây?
A. $B{{r}_{2}}$
B. $Na$
C. $NaOH$
D. $Cu{{\left( OH \right)}_{2}}/NaOH$
A. $B{{r}_{2}}$
B. $Na$
C. $NaOH$
D. $Cu{{\left( OH \right)}_{2}}/NaOH$
PTHH:
${{C}_{6}}{{H}_{5}}OH+3B{{r}_{2}}\xrightarrow{{}}{{C}_{6}}{{H}_{2}}B{{r}_{3}}OH+3HBr$
$2{{C}_{6}}{{H}_{5}}OH+2Na\xrightarrow{{}}2{{C}_{6}}{{H}_{5}}ONa+{{H}_{2}}$
${{C}_{6}}{{H}_{5}}OH+NaOH\xrightarrow{{}}{{C}_{6}}{{H}_{5}}ONa+{{H}_{2}}O$
${{C}_{6}}{{H}_{5}}OH+3B{{r}_{2}}\xrightarrow{{}}{{C}_{6}}{{H}_{2}}B{{r}_{3}}OH+3HBr$
$2{{C}_{6}}{{H}_{5}}OH+2Na\xrightarrow{{}}2{{C}_{6}}{{H}_{5}}ONa+{{H}_{2}}$
${{C}_{6}}{{H}_{5}}OH+NaOH\xrightarrow{{}}{{C}_{6}}{{H}_{5}}ONa+{{H}_{2}}O$
Đáp án D.
