Petrochemical EASE Past Papers

The fractional distillation of petroleum is shown.

Which fraction is the least volatile?

• bitumen

• diesel oil

• gasoline

• refinery gas

Which is the main component of natural gas?

• methane

• ethane

• propane

• butane

Which fraction, obtained from petroleum, is used for jet fuel?

• bitumen

• gasoline

• kerosene

• hydrogen

Plastics have properties, such as being strong, low density, low conductivity, and flexible, that make them ideal to be used for manufacturing many tools and stuff.

Which stuff is NOT recommended to be made of plastic?

• soft-drink bottles

• plastic bags

• frying pan

• prosthetic limbs

Plastics are used in every aspect of life. Many thousands of tonnes of plastics are used every day. Plastics cause a pollution problem both on land and in water unless they are biodegradable.

What makes some plastic non-biodegradable?

• Some plastics have a lot of carbon in it

• Some plastics cannot be decomposed by microbes

• Some plastics require high temperature to degrade

• Some plastics have organic additives in it

Which is NOT the advantage of using plastic products?

• light

• cheap

• resistant to corrosion

• hard to decompose

Fuels consist of two types, including renewable and non-renewable.

Which one is true about them?

• Coal and natural gas are renewable because their abundance is great.

• Petroleum is a non-renewable energy source and cannot be made in a short period of time.

• Hydrogen is a natural gas found together with petroleum.

• Petroleum can be used directly after it's extracted from an oil rig.

Plastics can pollute the ocean in the form of microplastics.

Which one is correct about microplastics?

• They are beneficial for cosmetics, clothing and industrial processes.

• They are less than 5 mm in length.

• They are naturally occured.

• They are safe for consumption by animals.

Burning fossil fuels releases heat energy.

Which substance is NOT a fossil fuel?

• coal

• hydrogen

• natural gas

• petroleum

Which statement about petroleum is NOT correct?

• It can be separated into useful substances by fractional distillation.

• It consists underground in many parts of the world.

• It consists mainly of hydrocarbons.

• Its main use for making lubricants and polishes.