6
MCQ (Single Correct Answer)
Which of the following will not show geometrical isomerism?
A
B
C
D
7
MCQ (Single Correct Answer)
Arrange the following hydrogen halides in order of their decreasing reactivity with propene.
A
$\mathrm{HCl}>\mathrm{HBr}>\mathrm{HI}$
B
$\mathrm{HBr}>\mathrm{HI}>\mathrm{HCl}$
C
$\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}$
D
$\mathrm{HCl}>\mathrm{HI}>\mathrm{HBr}$
8
MCQ (Single Correct Answer)
Arrange the following carbanions in order of their decreasing stability.
A. $\mathrm{H}_3 \mathrm{C}-\mathrm{C} \equiv \mathrm{C}^{-}$
B. $\mathrm{H}-\mathrm{C} \equiv \mathrm{C}^{-}$
C. $\mathrm{H}_3 \mathrm{C}-\mathrm{CH}_2$
A
A > B > C
B
B > A > C
C
C > B > A
D
C > A > B
9
MCQ (Single Correct Answer)
Arrange the following alkyl halides in decreasing order of the rate of $\beta$ - elimination reaction with alcoholic KOH.
A. 
B. $\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{Br}$
C. $\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br}$
A
A $>$ B $>$ C
B
C $>$ B $>$ A
C
B $>$ C $>$ A
D
A $>$ C $>$ B
10
MCQ (Single Correct Answer)
Which of the following reactions of methane is incomplete combustion?
A
$2 \mathrm{CH}_4+\mathrm{O}_2 \xrightarrow{\mathrm{Cu} / 523 \mathrm{~K} / 100 \mathrm{~atm}} 2 \mathrm{CH}_3 \mathrm{OH}$
B
$\mathrm{CH}_4+\mathrm{O}_2 \xrightarrow{\mathrm{Mo}_2 \mathrm{O}_3} \mathrm{HCHO}+\mathrm{H}_2 \mathrm{O}$
C
$\mathrm{CH}_4+\mathrm{O}_2 \longrightarrow \mathrm{C}(s)+2 \mathrm{H}_2 \mathrm{O}(l)$
D
$\mathrm{CH}_2+2 \mathrm{O}_2 \longrightarrow \mathrm{CO}_2(\mathrm{~g})+2 \mathrm{H}_2 \mathrm{O}(l)$