19
MCQ (Single Correct Answer)
Which of the following alkyl halides will undergo $S_N 1$ reaction most readily?
A
$\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{F}$
B
$\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{Cl}$
C
$\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{Br}$
D
$\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{I}$
20
MCQ (Single Correct Answer)
Which is the correct IUPAC name for
A
1-bromo-2-ethylpropane
B
1-bromo-2-ethyl-2-methylethane
C
1-bromo-2-methylbutane
D
2-methyl-1-bromobutane
21
MCQ (Single Correct Answer)
What should be the correct IUPAC name for diethylbromomethane?
A
1-bromo-1, 1-diethylmethane
B
3-bromopentane
C
1-bromo-1-ethylpropane
D
1-bromopentane
22
MCQ (Single Correct Answer)
The reaction of toluene with chlorine in the presence of iron and in the absence of light yields ........... .
A
B
C
D
Mixture of (b) and (c)
23
MCQ (Single Correct Answer)
Chloromethane on treatment with excess of ammonia yields mainly
A
N, N-dimethylmethanamine
B
N -methylmethanamine $\left(\mathrm{CH}_3-\mathrm{NH}-\mathrm{CH}_3\right)$
C
methanamine $\left(\mathrm{CH}_3 \mathrm{NH}_2\right)$
D
mixture containing all these in equal proportion