HYDROCARBONS

Which of the following is not stereoisomerism?

• functional group isomerism

• cis-trans isomerism

• optical isomerism

The reaction of ethane with chlorine gas under the presence of sunlight will follow ___________ mechanism

• free radical substitution

• electrophilic addition

• oxidation

• polymerisation

Which of the following is not the step in free radical substitution mechanism?

• initiation

• orientation

• propagation

• termination

What is the condition used for electrophilic addition of hydrogen to ethene?

• Ni catalyst at 140 ^OC

• concentrated Phosphoric acid catalyst at 330 ^oC and 6MPa

• room temperature

What is the condition for electrophilic addition for ethene with steam?

• room temperature

• Ni catalyst at 330 ^oC and 6MPa

• concentrated Phosphoric acid catalyst at 330 ^oC and 6MPa

• Ni catalyst at 140 ^OC

A diol is formed when ethene reacts with __________acidified potassium manganate (VII) at __________ temperature

• dilute, room

• dilute, high

• concentrated, room

• concentrated, high

Which of the statement is false about poly(alkene)?

• They are very reactive

• They are resistant to chemical attack

• They are non-biodegradable

• They may release toxic gases when burnt