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Fractional Distillation of Crude Oil

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Questions and Answers

Why does the boiling point of a fraction decrease with shorter molecules?

Higher heat energy release

Increased viscosity

Increased color intensity

Lower temperature of vaporization (correct)

What is the main product of complete combustion of hydrocarbons with oxygen?

Unburnt fuel particles

Carbon monoxide

$CO_2$ and $H_2O$ (correct)

Nitrogen oxides

Why is carbon monoxide considered poisonous?

It enhances breathing functions

It causes darkening of colors

It increases blood oxygen capacity

It prevents red blood cells from transporting oxygen (correct)

What pollutant is formed during the combustion of sulfur-containing fuels?

$SO_2$ Signup and view all the answers

What can be formed when nitrogen and oxygen react in high-temperature conditions in car engines?

$NO$ or $NO_2$ Signup and view all the answers

'Catalytic cracking' in petroleum refining converts long-chain alkanes into shorter-chain alkanes and alkenes using what catalyst?

Silica or alumina Signup and view all the answers

How do sulfur dioxide and nitrogen oxides contribute to acid rain formation?

Corrosion of rocks and buildings Signup and view all the answers

'Partial combustion' results in the release of unburnt fuel particles and what other substance?

$CO$ Signup and view all the answers

'Acid rain' can alter the pH of soil and rivers, affecting ecosystems by:

$H^+$ ion creation Signup and view all the answers

'Cracking' of hydrocarbons during petroleum refining involves:

$H_2O$ removal from hydrocarbons Signup and view all the answers

Fractional Distillation of Crude Oil

Choose a study mode

Podcast

Questions and Answers

Why does the boiling point of a fraction decrease with shorter molecules?

What is the main product of complete combustion of hydrocarbons with oxygen?

Why is carbon monoxide considered poisonous?

What pollutant is formed during the combustion of sulfur-containing fuels?

What can be formed when nitrogen and oxygen react in high-temperature conditions in car engines?

'Catalytic cracking' in petroleum refining converts long-chain alkanes into shorter-chain alkanes and alkenes using what catalyst?

How do sulfur dioxide and nitrogen oxides contribute to acid rain formation?

'Partial combustion' results in the release of unburnt fuel particles and what other substance?

'Acid rain' can alter the pH of soil and rivers, affecting ecosystems by:

'Cracking' of hydrocarbons during petroleum refining involves:

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