The common name of $Benzene-1,2-diol$ is

Classify the following as primary,secondary,and tertiary alcohols:
$(i)$ $CH_3-C(CH_3)_2-CH_2OH$
$(ii)$ $CH_2=CH-CH_2OH$
$(iii)$ $CH_3-CH_2-CH_2-OH$
$(iv)$ $C_6H_5-CH(OH)-CH_3$
$(v)$ $C_6H_5-CH_2-CH(OH)-CH_3$
$(vi)$ $C_6H_5-CH=CH-C(OH)(CH_3)_2$

Glycerol is a

$Crotonyl$ alcohol is an example of

Write structures of the compounds whose $IUPAC$ names are as follows:
$(i)$ $2-$Methylbutan$-2-$ol
$(ii)$ $1-$Phenylpropan$-2-$ol
$(iii)$ $3,5-$Dimethylhexane$-1,3,5-$triol
$(iv)$ $2,3-$Diethylphenol
$(v)$ $1-$Ethoxypropane
$(vi)$ $2-$Ethoxy$-3-$methylpentane
$(vii)$ Cyclohexylmethanol
$(viii)$ $3-$Cyclohexylpentan$-3-$ol
$(ix)$ Cyclopent$-3-$en$-1-$ol
$(x)$ $4-$Chloro$-3-$ethylbutan$-1-$ol.

Carbolic acid is