MCQ
IUPAC name of m-cresol is _________.
- A3-methylphenol.
- B3-chlorophenol.
- C3-methoxyphenol.
- DBenzene-1,3-diol.
Explanation:

-OH is functional group and -CH3 is substituent.
IUPAC name: 3-methylphenol.
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At what value of $(n)$ given compound will not evolve $CO_2$ gas ?
Given $\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}, \log 4=0.6021$

$\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||} \\
{C{H_2} = CH - C{H_2} - C - H}
\end{array} \to C{H_3} - C{H_2} - C{H_2} - C{H_2}OH$