11
MCQ (Multiple Correct Answer)
Some oxidation reactions of methane are given below. Which of them is/are controlled oxidation reactions?
A
$\mathrm{CH}_4(\mathrm{~g})+2 \mathrm{O}_2(\mathrm{~g}) \longrightarrow \mathrm{CO}_2(\mathrm{~g})+2 \mathrm{H}_2 \mathrm{O}(\mathrm{l})$
B
$\mathrm{CH}_4$ (g) $+\mathrm{O}_2(\mathrm{~g}) \longrightarrow \mathrm{C}(\mathrm{s})+2 \mathrm{H}_2 \mathrm{O}(l)$
C
$\mathrm{CH}_4(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \xrightarrow{\mathrm{MO}_2 \mathrm{O}_3} \mathrm{HCHO}+\mathrm{H}_2 \mathrm{O}$
D
$2 \mathrm{CH}_4(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \xrightarrow{\mathrm{Cu} / 523 / 100 \mathrm{~atm}} 2 \mathrm{CH}_3 \mathrm{OH}$
12
MCQ (Multiple Correct Answer)
Which of the following alkenes on ozonolysis give a mixture of ketones only?
A
$\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_3$
B
C
D
13
MCQ (Multiple Correct Answer)
Which are the correct IUPAC names of the following compound?
A
5-Butyl-4-isopropyldecane
B
5-Ethyl-4-propyldecane
C
5-sec-Butyl -4- iso-propyldecane
D
4-(1-methylethyl) - 5 - (1-methylpropyl)-decane
14
MCQ (Multiple Correct Answer)
Which are the correct IUPAC names of the following compound?
A
5-(2', 2' - Dimethylpropyl)-decane
B
4-Butyl-2,2-dimethylnonane
C
2,2-Dimethyl-4- pentyloctane
D
5-neo-Pentyldecane
15
MCQ (Multiple Correct Answer)
For an electrophilic substitution reaction, the presence of a halogen atom in the benzene ring ........... .
A
deactivates the ring by inductive effect
B
deactivates the ring by reasonance
C
increases the charge density at ortho and para position relative to meta position by resonance.
D
directs the incoming electrophile to meta position by increasing the charge density relative to ortho and para position.