What is the major organic product of the following reaction?
(Image of $2-$methyl$-2,3-$dihydrobenzofuran with an $^{18}O$ atom in the ring,reacting with $H_3O^+$)

Match the structures of the compounds given in Column-$I$ with the names of the compounds given in Column-$II$.

Column-$I$	Column-$II$
$(i)$ $2-$methylphenol	$(a)$ Hydroquinone
$(ii)$ Benzene$-1,2-$diol	$(b)$ Phenetole
$(iii)$ Benzene$-1,3-$diol	$(c)$ Catechol
$(iv)$ Benzene$-1,4-$diol	$(d)$ $o$-Cresol
$(v)$ Methoxybenzene	$(e)$ Quinone
$(vi)$ Ethoxybenzene	$(f)$ Resorcinol
	$(g)$ Anisole

Which of the following compounds will evolve hydrogen on treatment with metal?

Consider the following reaction:
Which response contains all the correct statements about this process?
$1.$ Dehydration
$2.$ $E_2$ mechanism
$3.$ Carbon skeleton migration
$4.$ Most stable alkene will form
$5.$ Single-step reaction

Which of the following statements is not incorrect?
$(i)$ tert-butyl chloride is easily hydrolysed to give alcohol.
$(ii)$ Secondary alcohol gives a blue colour in the Victor-Meyer test.
$(iii)$ The $IUPAC$ name of the given structure is $3-$methylpentan$-2-$ol.
$(iv)$ Alcohol releases $CH_4$ gas with a Grignard reagent (not $H_2$ gas).

The correct order of boiling points of the compounds given below is-
$A$) Methoxy ethane
$B$) Propan-$1$-ol
$C$) Propanal
$D$) Propanone