NEET UG 2018 — Organic Chemistry

What is the difference between amylose and amylopectin?

Which of the following is correct with respect to $-I$ effect of the substituent? ($R=$alkyl group)

The compound $A$ on treatment with $\mathrm{Na}$ gives $B$, and with $\text{P}\text{C}{\text{l}}_{5}$ gives $C$. $B\mathrm{and}C$ react together to give diethyl ether. $A,B\mathrm{and}C$ are in the order

Which of the following carbocations is expected to be the most stable?

Identify the major products $P,Q$ and $R$ in the following sequence of reactions: 

In the reaction, the electrophile involved is 

The compound $\text{A}, {\text{C}}_{8}{\text{H}}_{10}\text{O},$ is found to react with $\text{N}\text{a}\text{O}\text{I}$ (produced by reacting $\text{Y}$ with $\text{NaOH}$) and yields a yellow precipitate with a characteristic smell. $\text{A}$ and $\text{Y}$ respectively, are

Hydrocarbon $(\text{A})$ reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms. $(\text{A})$ is?

Nitration of aniline in strong acidic medium also gives $m$-nitroaniline because:

The compound ${C}_{7}{H}_{8}$ undergoes the following reactions:  The product $'C'$ is

Which of the following compounds can form a zwitter ion?