Sulfur dioxide

Which air pollutants can cause acid rain?

• Nitrogen oxides and sulfur dioxide

• Sulfur dioxide and carbon monoxide

• Nitrogen oxides and ozone

• Sulfur dioxide and ozone

Which of the following are properties of sulfur dioxide

• colourless

• chocking smell

• acidic gas

• odourless

Sulfur dioxide dissolves in water to give

• sulfur trioxide

• sulfurous acid

• sulfuric acid

• insoluble in water

Sulfur trioxide dissolves in water to give

• sulfur trioxide

• sulfurous acid

• sulfuric acid

• insoluble in water

Sulfur dioxide turns acidified potassium dichromate from _____ to __________

• green to orange

• colourless to purple

• orange to green

• purple to colourless

Sulfur dioxide turns acidified potassium permanganate from _____ to __________

• green to orange

• colourless to purple

• orange to green

• purple to colourless

Sulfur dioxide solution needs to be prepared using the inverted funnel since it is

• denser than air

• does not dissolve

• highly soluble

• a gas

When sulfur dioxide is bubbled through a solution of iron (III) sulfate it changes color to green. This is because sulfur dioxide is acting as a /an

• oxidising agent

• reducing agent

• dehydrating agent

• drying agent.

Sources of sulfur dioxide in air

• vehicle exhaust

• fumes from factories

• volcanic eruptions

• aerosols propellants

The presence of sulfur dioxide in the air can be reduced by using

• catalytic converters

• alkaline chimney filters

• renewable sources of energy

• desulfurised fuels