An alcohol (A) on heating with concentrated $H_{2}S{O}_4$ gives alkene (B) as major product and (B) can shown the geometrical isomerism . The compound (A) is $:$

One mole of aniline warmed with the mixture of $NaN{O}_2+HCl.$ If we assume 100% yield, volume of $N_2$ gas liberated at S.T.P is

Ethyl alcohol is the hydrolysis product in acidic medium of

Which is formed when ethanol reacts with acetic acid

The correct order of decreasing basicity of the following species is:
$H_{2}O,O{H}^{-},C{H}_{3}OH,C{H}_{3}O$

Increasing $p{K}_a$ values of o-, m- and p- cresols is

$C_n{H}_{2n+2}O$ is the general formula of ethers To exhibit the functional group isomerism 'n' must be minimum

Fischer esterification is represented as follows $R-\stackrel{O}{\stackrel{\mid \mid }{C}}-\stackrel{16}{O}-H+R^{\prime }-\stackrel{18}{O}H\iff R-\stackrel{O}{\stackrel{\mid \mid }{C}}-\stackrel{A}{O}-R^{\prime }+H_{2}O$ here $\left(R=C{H}_3,R^{\prime }=C_2{H}_5\right)$ in the above reaction A/2 is equal to

Identify the product Z in the following sequence of reactions
"$phenol\stackrel{NaOH}{\to }X\underset{4-7atm,410K}{\stackrel{C{O}_2}{\to }}Y\stackrel{H_3{O}^{+}}{\to }Z$

Anisole with conc. $HN{O}_3$ and conc. $H_{2}S{O}_4$ gives