1
MCQ (Single Correct Answer)
Arrange the following in decreasing order of their boiling points.
A. $n$-butane
B. 2-methylbutane
C. $n$-pentane
D. 2, 2-dimethylpropane
A
$A>B>C>D$
B
$B>C>D>A$
C
$D>C>B>A$
D
$C>B>D>A$
2
MCQ (Single Correct Answer)
Arrange the halogens $\mathrm{F}_2, \mathrm{Cl}_2, \mathrm{Br}_2, \mathrm{I}_2$, in order of their increasing reactivity with alkanes.
A
$\mathrm{I}_2<\mathrm{Br}_2<\mathrm{Cl}_2<\mathrm{F}_2$
B
$\mathrm{Br}_2<\mathrm{Cl}_2<\mathrm{F}_2<\mathrm{I}_2$
C
$\mathrm{F}_2<\mathrm{Cl}_2<\mathrm{Br}_2<\mathrm{I}_2$
D
$\mathrm{Br}_2<\mathrm{I}_2<\mathrm{Cl}_2<\mathrm{F}_2$
3
MCQ (Single Correct Answer)
The increasing order of reduction of alkyl halides with zinc and dilute HCl is
A
$R-\mathrm{Cl}<\mathrm{R}-\mathrm{I}<\mathrm{R}-\mathrm{Br}$
B
$\mathrm{R}-\mathrm{Cl}<\mathrm{R}-\mathrm{Br}<\mathrm{R}-\mathrm{I}$
C
$R-\mathrm{I}< R-\mathrm{Br}< R-\mathrm{Cl}$
D
$R-\mathrm{Br}< R-\mathrm{I}< \mathrm{R}-\mathrm{Cl}$
4
MCQ (Single Correct Answer)
The correct IUPAC name of the following alkane is
A
3,6-diethyl-2-methyloctane
B
5-isopropyl-3-ethyloctane
C
3-ethyl-5-isopropyloctane
D
3-isopropyl-6-ethyloctane
5
MCQ (Single Correct Answer)
The addition of HBr to 1-butene gives a mixture of products $A, B$ and $C$.
The mixture consists of
A
$A$ and $B$ as major and $C$ as minor products
B
$B$ as major, $A$ and $C$ as minor products
C
$B$ as minor, $A$ and $C$ as major products
D
$A$ and $B$ as minor and $C$ as major products