JEE Main 2003 — Organic Chemistry

Bottles containing $\mathrm{C}_6 \mathrm{H}_5$ l and $\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{I}$ lost their original labels. They were labelled $\mathrm{A}$ and $\mathrm{B}$ for testing $\mathrm{A}$ and $\mathrm{B}$ were separately taken in test tubes and boiled with $\mathrm{NaOH}$ solution. The end solution in each tube was made acidic with dilute $\mathrm{HNO}_3$ and then some $\mathrm{AgNO}_3$ solution was added. Substance B gave a yellow precipitate. Which one of the following statements is true for this experiment?

Which one of the following statements is correct?

Ethyl isocyanide on hydrolysis in acidic medium generates

An ether is more volatile than an alcohol having the same molecular formula. This is due to

In the anion $\mathrm{HCOO}^{-}$the two carbon-oxygen bonds are found to be of equal length. What is the reason for it?

Complete hydrolysis of cellulose gives

When $\mathrm{CH}_2=\mathrm{CH}-\mathrm{COOH}$ is reduced with $\mathrm{LiAlH}_4$, the compound obtained will be

During dehydration of alcohols to alkenes by heating with conc. $\mathrm{H}_2 \mathrm{SO}_4$ the initiation step is

The correct order of increasing basic nature for the bases $\mathrm{NH}_3, \mathrm{CH}_3 \mathrm{NH}_2$ and $\left(\mathrm{CH}_3\right)_2 \mathrm{NH}$ is

The reaction of chloroform with alcoholic $\mathrm{KOH}$ and p-toluidine forms

The IUPAC name of $\mathrm{CH}_3 \mathrm{COCH}\left(\mathrm{CH}_3\right)_2$ is

Butene- 1 may be converted to butane by reaction with

Among the following four structures I to IV.     It is true that

The general formula $\mathrm{C}_{\mathrm{n}} \mathrm{H}_{2 \mathrm{n}} \mathrm{O}_2$ could be for open chain

On mixing a certain alkane with chlorine and irradiating it with ultravioletlight, it forms only one monochloroalkane. This alkane could be

The reason for double helical structure of DNA is operation of