Acid rain and chemical weathering | Starter Quiz | Oak National Academy

Which of the following household products contain acid?

• vinegar

• lemons

• orange juice

• soap

Answer explanation

Vinegar, lemons and orange juice are all acidic.

What is the pH of a neutral solution?

Answer explanation

The pH of a neutral solution is 7.

When using universal indicator solution, what colour will a strong acid be?

• green

• blue

• purple

• yellow

• red

Answer explanation

Strong acids will colour red or dark orange shades with universal indicator solution. Neutral solutions will be green.

Match the acids names with their formula.

• hydrochloric acid

• HCl

• nitric acid

• H₂SO₄

• sulfuric acid

• HNO₃

Answer explanation

The formula for nitric acid is HNO₃, sulfuric acid is H₂SO₄, and hydrochloric acid is HCl.

Name a pollutant in the atmosphere which can produce acid rain.

Answer explanation

Sulfur dioxide (produced from burning fuels containing sulfur impurities), carbon dioxide, and oxides of nitrogen both produce acid rain.

Which of the following rocks are sedimentary?

• limestone

• dolomite

• marble

• sandstone

• slate

Answer explanation

Limestone, sandstone and dolomite are all examples of sedimentary rock. Marble and slate are examples of metamorphic rocks.