1

### JEE Main 2017 (Online) 8th April Morning Slot

A mixture containing the following four compounds is extracted with $1M$ $HCl.$ The compound that goes to aqueous layer is :

A
(I)
B
(II)
C
(III)
D
(IV)
2

### JEE Main 2017 (Online) 8th April Morning Slot

Which of the following statements is not true about partition chromatography ?
A
Mobile phase can be a gas
B
Stationary phase is a finely divided solid adsorbent
C
Separation depends upon equilibration of solute between a mobile and a stationary phase
D
Paper chromatography is an example of partition chromatography
3

### JEE Main 2017 (Online) 8th April Morning Slot

The IUPAC name of the following compound is :

A
1, 1-Dimethyl-2-ethylcylohexane
B
2-Ethyl-1, 1-dimethylcyclohexane
C
1-Ethyl-2,2-dimethylcyclohexane
D
2, 2-Dimethyl-1-ethylcycohexane
4

### JEE Main 2017 (Online) 9th April Morning Slot

In the following structure, the double bonds are marked as I, II, III and IV

Geometrical isomerism is not possible at site (s) :
A
III
B
I
C
I and III
D
III and IV

## Explanation

For geometrical isomerism, different groups should be attached to each sp2 hybridised C $-$ atom.

Here at double bond I, at sp2 hybridised C $-$ atom same group $-$ CH3 is attached, so, at site I isomer is not possible.