1

### AIPMT 2014

Identify Z in the sequence of reactions :
A
CH3 $-$(CH2)3 $-$ O $-$ CH2CH3
B
(CH3)2CH $-$ O $-$ CH2CH3
C
CH3(CH2)4 $-$ O $-$ CH3
D
CH3CH2 $-$ CH(CH3) $-$ O $-$ CH2CH3

## Explanation

2

### AIPMT 2014

What products are formed when the following compound is treated with Br2 in the presence of FeBr3?

A
B
C
D

## Explanation

Methyl group is ortho para directing but due to steric hindrance effect, generated by two -CH3 groups substitution will not take place on position (I). Hence only two products are possible.
3

### NEET 2013 (Karnataka)

In the following reaction :

Product 'P' will not give
A
Tollen's reagent test
B
C
Victor Meyer test
D
Iodoform test

## Explanation

CH3CHO does not give Victor Meyer test.
4

### NEET 2013 (Karnataka)

Which of the following chemical system is non aromatic ?
A
B
C
D

## Explanation

The molecules which do not satisfy Huckel rule or (4n + 2)$\pi$-electron rule are said to be non-aromatic.

The compound (d) has four $\pi$ electrons. It does not follow (4n + 2)$\pi$ rule. So it is non-aromatic compound.