Chemistry Practice Questions & Answers

Which gas emitted by power stations causes acid rain?

Which gas emitted by power stations causes acid rain?

A).  Carbon dioxide

B).  Sulphur dioxide

C).  Helium

D).  Nitrogen

What are the components responsible for acid rain?

What are the components responsible for acid rain?

A).  Nitrogen monoxide (NO) and Carbon monoxide (CO)

B).  Sulphur dioxide (SO₂) and Nitrogen oxides (NO_x)

C).  Carbon dioxide (CO₂) and Carbon monoxide (CO)

D).  Oxides of carbon (CO_x) and Oxides of nitrogen (NO_x)

Acid rain is caused due to pollution of atmosphere by

Acid rain is caused due to pollution of atmosphere by

A).  Oxides of carbon and nitrogen

B).  Oxides of nitrogen and sulphur

C).  Oxides of nitrogen and phosphorous

D).  None of these

Permanent hardness of water may be removed by addition of

Permanent hardness of water may be removed by addition of

A).  Alum

B).  Sodium carbonate

C).  Lime

D).  Potassium Permangante

Water cycle refers to

Water cycle refers to

A).  An integrated attempt to recycle water in relatively arid regions

B).  Constant movement of water from ocean to land and back to ocean once again

C).  Scientific management of water in areas excessively plagued with water-logging

D).  Water distribution in relatively dry areas

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