Which of the following reaction is the least likely to be termination reaction

a$)H^{}+C^{}{H}_{3}C{H}_4$

b$)C_2^{}{H}_5{C}_2{H}_4+H^{}$

c$)H^{}+H^{}{H}_2$

d$)C_2^{}{H}_5+C_2^{}{H}_{5}2C_2{H}_4+2H_2$

Which of the following reagents cannot be used for alkylation

a$)$ Alkyl halides

b$)$Olefins

c$)$ Ketones

d$)$Alcohol

$3.$Which of the following reactions is the reason for a de$-$alkylator in the styrene plant

a$)C_6{H}_6+C_2{H}_4(C_6{H}_5)C_2{H}_5$

b$)C_6{H}_6+2C_2{H}_4(C_6{H}_4)(C_2{H}_5{)}_2$

c$)(C_6{H}_5)C_2{H}_3{C}_6{H}_6+C_2{H}_5$

d$)C{H}_4+H_{2}OCO+3H_2$

Which of the following reactions is not involved in the production of polystyrene

a$)$ Alkylation

b$)$ Dehydrogenation

c$)$ polymerization

d$)$ Hydrogenation

Which of these reactions does not occur in a vinyl chloride monomer

a$)$ Chlorination of ethylene

b$)$ Dehydrogenation of Di$-$chloro ethane

c$)$ Oxychlorination of ethylene

d$)$ Pyrolysis of Di$-$chloro ethane

Which of the following is not a means a type of amination

a$)$ Hydrogenation of Nitro alkanes

b$)$ Amonolysis of halo$-$alkanes

c$)$ Hydrogenation of Amides

d$)$ Direct Amonloysis of benzene

Which of the following affects the yield of ethylene from the steam cracking of hydrocarbons

a$)$ Nature of hydrocarbon

b$)$ Operating conditions

c$)$ Hydrocarbon to steam ratio

d$)$ All of the above

The difference in the type of halogenation that occurs between alkanes and alkenes is due to

a$)$ The difference in molecular weight

b$)$ The difference in orientation

c$)$ The difference in reactivity

d$)$ None of the above

Sulphuric acid is added to Nitric acid in the nitration of alkanes due to

a$)$ Its ability to create acidic $pH$

b$)$ Its catalytic ability

c$)$ Its hygroscopic ability

d$)$ None of the above

Organic compounds may undergo sulfation or sulfonation for each of the following reasons except

a$)$ To produce a precursor for amination

b$)$ The production of detergent

c$)$The production of acidic organic compounds

d$)$ To neutralize basic organic compounds