8
MCQ (Single Correct Answer)
The principle involved in paper chromatography is
A
adsorption
B
partition
C
solubility
D
volatility
9
MCQ (Single Correct Answer)
What is the correct order of decreasing stability of the following cations?
A
II > I > III
B
II > III > I
C
III > I > II
D
I > II > III
10
MCQ (Single Correct Answer)
Correct IUPAC name for
is ........... .
A
2-ethyl-3-methylpentane
B
3,4-dimethylhexane
C
2-sec-butylbutane
D
2, 3-dimethylbutane
11
MCQ (Single Correct Answer)
In which of the following compounds the carbon marked with asterisk is expected to have greatest positive charge?
A
${ }^* \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{Cl}$
B
${ }^* \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{Mg}^{+} \mathrm{Cl}^{-}$
C
$* \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{Br}$
D
$* \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_3$
12
MCQ (Single Correct Answer)
Ionic species are stabilised by the dispersal of charge. Which of the following carboxylate ion is the most stable?
A
B
C
D
