Question

Consider the following statements regarding compounds which cause global warming. $$'X'$$ is a hydrocarbon, $$'A'$$ and $$'B'$$ are neutral oxides of nitrogen, $$'C'$$ is a blue coloured gas and $$'D'$$ is released when $${H_2}S$$  is reacted with oxygen. Identify the correct statements about $$X, A, B, C$$   and $$D.$$
(i) $$'X'$$ is mainly present in natural gas.
(ii) In $$A$$ and $$B$$ one is diamagnetic and another one is paramagnetic.
(iii) $$'C'$$ can be identified by using liquid element in $$d$$ - block.
(iv) $$'D'$$ causes acid rain.

A. All are correct  
B. (i), (ii), (iii)
C. (ii), (iii), (iv)
D. (i), (iii), (iv)
Answer :   All are correct
Solution :
$$X:C{H_4},A$$   and $$B:NO$$  and $$N{O_2},C:{O_3},D:S{O_2}$$

Releted MCQ Question on
Inorganic Chemistry >> Environmental Chemistry

Releted Question 1

Which of the following statement is false ?

A. London smog is oxidising in nature
B. Photochemical smog causes irritation in eyes
C. London smog is a mixture of smoke and fog
D. Photochemical smog results in the formation of $$PAN$$
Releted Question 2

Which of the following acts as a sink for $$CO?$$

A. Plants
B. Haemoglobin
C. Microorganisms present in the soil
D. Oceans
Releted Question 3

Global warming is due to increase of :

A. methane and nitrous oxide in atmosphere.
B. methane and $$C{O_2}$$  in atmosphere.
C. methane and $${O_3}$$  in atmosphere.
D. methane and $$CO$$  in atmosphere.
Releted Question 4

Which of the following statements about the depletion of ozone layer is correct ?

A. The problem of ozone depletion is less serious at poles because $$N{O_2}$$  solidifies and is not available for consuming $$CI{O^ \bullet }$$  radicals.
B. The problem of ozone depletion is more serious at poles because ice crystals in the clouds over poles act as catalyst for photochemical reactions involving the decomposition of ozone of $$C{l^ \bullet }$$  and $$CI{O^ \bullet }$$  radicals.
C. Freons, chlorofluorocarbons, are inert. Chemically, they do not react with ozone in stratosphere.
D. Oxides of nitrogen also do not react with ozone in stratosphere.

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Environmental Chemistry


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