CBSE
Multiple Choice QuestionsWhich of the following is not a greenhouse gas?
Carbon dioxide
Water vapours
Methane
Oxygen
The radiant energy from the sun is due to :
combustion
chemical reaction
nuclear fusion
nuclear fission
Assertion : Photochemical smog is produced by nitrogen oxides.
Reason : Vehicular pollution is a major source of nitrogen oxides.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
If both assertion and reason are true and the reason is not the correct explanation of the assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Living in the atmosphere of CO is dangerous, because it
combines with O, present inside to form CO2
reduces organic matter of tissues
combines with haemoglobin and makes it incapable to absorb oxygen
dries up the blood.
Which of the following is not a green house gas?
Carbon dioxide
Water vapour
Methane
Oxygen
Ozone in stratosphere is depleted by
CF2Cl2
C7F16
C6H6Cl6
C6F6
Which of the following chemicals are used to manufacture methyl isocyanate that caused "Bhopal Tragedy"?
(i) methylamine
(ii) phosgene
(iii) phosphine
(iv) dimethylamine
(i) and (iii)
(iii) and (iv)
(i) and (ii)
(ii) and (iv)
Green chemistry means such reactions which
are related to the depletion of ozone layer
study the reactions in plants
produce colour during reactions
reduce the use and production of hazardous chemicals.
White lung cancer is caused by :
asbestos
silica
paper
textiles
Which of the following is not a green house gas?
Hydrogen
Carbon dioxide
Methane
Nitrous oxide or N2O
