In which type of reaction oxygen is converted into ozone
Options
(a) Oxidation (b) Reduction (c) Photochemical (d) Addition
Correct Answer:
Reduction
Explanation:
Ozone layer occurs in stratosphere.It prevents about 99.5% of the […]
Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxides of nitrogen because
Options
(a) the reaction is endothermic and requires very high temperature […]
The recycling of plastic is done by
Options
(a) depolymerization (b) reoxidation (c) transformation (d) all of the above
Correct Answer:
depolymerization
Explanation:
Classical smong is called reducing smong.
Which of the following statements is correct
Options
(a) Ozone hole is a hole formed in stratosphere from which ozone oozes out (b) Ozone hole is a hole formed in the troposphere from […]
Which of the following gases is not a greenhouse gas
Options
(a) CO (b) O₃ (c) CH₄ (d) H₂O vapour
Correct Answer:
CO
Explanation:
No explanation available. Be the first to write the […]
The ozone layer forms naturally by
Options
(a) the interaction of CFC with oxygen (b) the interaction of UV radiation with oxygen (c) the interaction of IR radiation with oxygen (d) the interaction […]
The secondary precursors of photochemical smog are
Options
(a) SO₂ and NO₂ (b) SO₂ and hydrocarbons (c) NO₂ and hydrocarbons (d) O₃ and PAN
Correct Answer:
O₃ and PAN
Explanation:
No explanation available. […]
Which one of the following is not a greenhouse gas
Options
(a) Methane (b) Ozone (c) Carbon dioxide (d) Nitrogen
Correct Answer:
Nitrogen
Explanation:
CH₄, O₃ and CO₂ are green house gases since […]
The greenhouse effect can be caused by the presence of the following component present in automobile exhaust
Options
(a) oxides of nitrogen (b) hydrocarbons (c) CO₂ (d) SO₂
Correct Answer:
CO₂
Explanation:
No […]
Which one of the following statements regarding photochemical smog is not correct
Options
(a) Carbon monoxide does not play any role in photochemical smog formation (b) Photochemical smong is an oxidising agent in […]
2017 Copyright Doctor Dreams Training Academy