JEE Main 2010 — Organic Chemistry

Out of the following, the alkene that exhibits optical isomerism is

In the chemical reactions,  the compounds ' $\mathrm{A}$ ' and ' $\mathrm{B}$ ' respectively are

The correct order of increasing basicity of the given conjugate bases $\left(\mathrm{R}=\mathrm{CH}_3\right)$ is

Biuret test is not given by

$29.5 \mathrm{mg}$ of an organic compound containing nitrogen was digested according to Kjeldahl's method and the evolved ammonia was absorbed in $20 \mathrm{~mL}$ of $0.1 \mathrm{M} \mathrm{HCl}$ solution. The excess of the acid required $15 \mathrm{~mL}$ of $0.1 \mathrm{M} \mathrm{NaOH}$ solution for complete neutralization. The percentage of nitrogen in the compound is

One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of $44 \mathrm{u}$. The alkene is

From amongst the following alcohols the one that would react fastest with conc. $\mathrm{HCl}$ and anhydrous $\mathrm{ZnCl}_2$, is

The main product of the following reaction is $\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{CH}(\mathrm{OH}) \mathrm{CH}\left(\mathrm{CH}_3\right)_2 \stackrel{\text { conc. } \mathrm{H}_2 \mathrm{SO}_4}{\longrightarrow}$ ?

Consider the following bromides :  The correct order of $\mathrm{S}_{\mathrm{N}} 1$ reactivity is