Materials questions

By Interwoven Maths

Materials question collection

Review Materials questions for Chemistry, with correct answers shown and coverage across choosing which element is present in organic compounds; crude oil is best described as; choosing which atoms are present in a hydrocarbon.

Back to Materials practice Back to Chemistry

Question 1

Which element is present in organic compounds?
  1. Carbon
  2. Silicon
  3. Sodium
  4. Iron

Question 2

Crude oil is best described as?
  1. A mixture of hydrocarbons
  2. A pure compound of carbon dioxide
  3. A single alkane
  4. A mixture of metal salts

Question 3

Which atoms are present in a hydrocarbon?
  1. Hydrogen and carbon
  2. Hydrogen and oxygen
  3. Carbon and oxygen
  4. Hydrogen, oxygen and nitrogen

Question 4

Which polymer property makes it suitable for coating a cable?
  1. Electrical insulation
  2. Electrical conduction
  3. Magnetic attraction
  4. High brittleness

Question 5

Which material class is generally flexible and waterproof?
  1. Many polymers
  2. Most ceramics
  3. Most metals
  4. Most glasses

Question 6

Which description defines a composite?
  1. Materials combined to give useful properties
  2. Metals chemically changed into one element
  3. One polymer made from identical monomers
  4. A mixture separated into pure substances

Question 7

Complete combustion of one propane molecule forms how many carbon dioxide molecules?
  1. 3
  2. 1
  3. 2
  4. 8

Question 8

Which equation shows complete combustion of methane?
  1. \(\mathrm{CH}_{4} + 2\mathrm{O}_{2} \to \mathrm{CO}_{2} + 2\mathrm{H}_{2}\mathrm{O}\)
  2. \(\mathrm{CH}_{4} + \mathrm{O}_{2} \to \mathrm{CO} + \mathrm{H}_{2}\mathrm{O}\)
  3. \(2\mathrm{CH}_{4} + \mathrm{O}_{2} \to 2\mathrm{CO}_{2} + 2\mathrm{H}_{2}\mathrm{O}\)
  4. \(\mathrm{CH}_{4} \to \mathrm{C} + 2\mathrm{H}_{2}\)

Question 9

When is incomplete combustion more likely?
  1. Not enough oxygen
  2. Excess oxygen
  3. A catalyst
  4. Very low pressure

Question 10

Which poisonous gas can incomplete combustion produce?
  1. Carbon monoxide
  2. Carbon dioxide
  3. Sulfur dioxide
  4. Nitrogen dioxide

Question 11

Why is carbon monoxide dangerous?
  1. It reduces the blood's oxygen-carrying ability
  2. It increases the blood's oxygen capacity
  3. It turns into oxygen inside the lungs
  4. It raises the number of red blood cells immediately

Question 12

How are fractions separated from crude oil?
  1. By fractional distillation
  2. By filtration through paper
  3. By chromatography
  4. By neutralisation with alkali

Question 13

Which property separates crude-oil fractions in a distillation column?
  1. Boiling range
  2. Solubility in water
  3. Reaction rate with oxygen
  4. Electrical conductivity

Question 14

In a fractional distillation column, which fractions leave near the bottom?
  1. Fractions with higher boiling points
  2. Fractions with lower boiling points
  3. Gases
  4. The shortest-chain hydrocarbons

Question 15

Which finite resource can recycling oil-based plastic conserve?
  1. Crude oil
  2. Iron ore
  3. Limestone
  4. Fresh water

Question 16

Which property is typical of many ceramics?
  1. Heat resistance
  2. Elastic stretching
  3. High electrical conduction
  4. Easy reshaping when cold

Question 17

Which is a composite material?
  1. Reinforced concrete
  2. High-density polyethylene
  3. Pure copper metal
  4. Soda-lime glass

Question 18

Which pair describes carbon-fibre composite?
  1. Strong and light
  2. Dense and brittle
  3. Soft and elastic
  4. Heavy and flexible

Question 19

Which description defines a polymer?
  1. Many repeating monomer units joined
  2. One monomer before joining
  3. Several polymers mixed but unjoined
  4. A catalyst used during polymerisation

Question 20

Why does burning fossil fuels affect climate?
  1. It adds carbon dioxide to the atmosphere
  2. It removes carbon dioxide from the atmosphere
  3. It converts atmospheric carbon dioxide into oxygen
  4. It stops infrared radiation reaching Earth

Question 21

Why is crude oil described as a finite resource?
  1. It forms far more slowly than it is used
  2. It reforms each year from living crops
  3. It is produced whenever fuels burn
  4. It can be replaced by refining used oil

Question 22

Which statement describes many common plastics?
  1. Decomposers break it down very slowly
  2. Decomposers digest it rapidly
  3. Rain dissolves it into nutrients
  4. Sunlight turns it quickly into compost

Question 23

What does reusing a plastic bottle mean?
  1. Using it again without remaking it
  2. Melting it into a new product
  3. Breaking it down by composting
  4. Burning it to release energy

Question 24

What is combustion?
  1. Burning in oxygen
  2. Freezing a liquid
  3. Separating a mixture
  4. Neutralising an acid

Question 25

Why can carbon monoxide build up without people noticing?
  1. It is colourless and odourless
  2. It smells strongly only outdoors
  3. It is visible only in bright light
  4. It turns into oxygen before detection

Question 26

Which description defines a monomer?
  1. Small molecule that joins into a polymer
  2. Long chain of repeating units
  3. Catalyst for polymerisation
  4. Ion released by a metal

Question 27

Why are plastics useful for many products?
  1. Their properties can be tailored
  2. Every polymer has identical properties
  3. They conduct electricity without additives
  4. They decompose rapidly in soil

Question 28

Why are different plastics separated before recycling?
  1. They need different processing conditions
  2. They contain different atomic elements
  3. They become identical when heated
  4. They are sorted by their original price

Question 29

What is a biofuel?
  1. Fuel made from recently living material
  2. Fuel made from ancient fossil material
  3. Energy released from nuclear fuel
  4. Hydrogen refined from crude oil

Question 30

Why is soot from incomplete combustion harmful?
  1. Fine particles can damage the lungs
  2. Particles increase oxygen uptake
  3. Particles neutralise carbon monoxide
  4. Particles remove carbon dioxide from air

About this topic

Review Materials questions for Chemistry, with correct answers shown and coverage across choosing which element is present in organic compounds; crude oil is best described as; choosing which atoms are present in a hydrocarbon.

This topic covers

Example question types