Acid rain is caused due to emission of which of the following into the atmosphere ?
A. Oxides of nitrogen and sulphur
B. Carbon dioxide and carbon monoxide
C. Ozone and carbon dioxide
D. Carbon monoxide and nitrogen
Answer: Option A
A. Oxides of nitrogen and sulphur
B. Carbon dioxide and carbon monoxide
C. Ozone and carbon dioxide
D. Carbon monoxide and nitrogen
Answer: Option A
Which of the following phenomenon is considered responsible for Global Warming?
A. Greenhouse effect
B. Fire in coal mines
C. Dry farming
D. Monsoon
E. Trade winds
The nucleus of an atom consists of
A. electrons and neutrons
B. electrons and protons
C. protons and neutrons
D. All of the above
The number of moles of solute present in 1 kg of a solvent is called its
A. molality
B. molarity
C. normality
D. formality
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