MCQ
The ring deuteration of phenol
- ✓Lowers the acidity
- BIncreases the acidity
- CImparts no effect
- DCauses amphoteric nature
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$HCHO\xrightarrow[{dil{H_2}S{O_4}}]{{NaCN}}A\xrightarrow[{\operatorname{P} t}]{{{H_2}}}B$ The product $(B)$ is
