hydrocarbon

volatile hydrocarbons are collected at the __________ of the fractionating column during fractional distillation

• top

• bottom

• middle

which of the following does not have the same molecular formula with cyclohexane?

• hexene

• hexane

Alkanes are generally ________________

• reactive

• unreactive

alkanes have tendency to be attacked by __________________

• electrophile

• nucleophile

• free radical

the double bond in alkene is an indication to call alkene as _______________________ hydrocarbon

• saturated

• unsaturated

which of the following will not be released after incomplete combustion with alkene?

• carbon dioxide

• water

• carbon

• carbon monoxide

which of the following is incorrect about carbon monoxide gas?

• odourless

• colourless

• toxic

• can cause acid rain

catalytic converters removes the pollutants except _________

• carbon monoxide

• nitrogen monoxide

• carbon dioxide

free radicals are formed because of the presence of sunlight or uv light. what causes the formation of free radicals?

• homolytic fission

• heterolytic fission

which of the following step does not involve formation of free radicals?

• initiation

• propagation

• termination