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Q.

In-correct statement among the following is

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a

The main component of catalytic converter in cars is ceramic honey comb coated with precious metals like Pd, Pt & Rh

b

The convertor converts CO and NOx at 573k to CO2 & N2

c

Particles of oxides or NH4+ salts in acid rain drops result in dry deposition

d

SO2 absorbed directly on both solid and liquid ground surface results in dry deposition

answer is C.

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Detailed Solution

Acid rain refers to the ways in which acid from the atmosphere is deposited on the earth’s surface. Oxides of nitrogen and sulphur which are acidic in nature can be blown by wind along with solid particles in the atmosphere and finally settle down either on the ground as dry deposition or in water, fog and snow as wet deposition.

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