Verified Solution • 2025–26 Session moderate

QNEET-2021-Ch-589: NEET 2021 Chemistry - Class 12 NEET-2021-Ch-589 Solution: Match List-I with List-II: List-I List-II (a) \(2SO_2(g)+O_2(g) …

Match List-I with List-II: List-I List-II (a) 2SO2(g)+O2(g)→2SO3(g)2SO_2(g)+O_2(g) \rightarrow 2SO_3(g) (i) Acid rain (b) NO2(g)→NO(g)+O2(g)NO_2(g) \rightarrow NO(g) + O_2(g) (ii) Smog (c) CaCO3+H2SO4→CaSO4+H2O+CO2CaCO_3 + H_2SO_4 \rightarrow CaSO_4 + H_2O + CO_2 (iii) Ozone depletion (d) CF2Cl2(g)→CFCl2(g)+Cl(g)CF_2Cl_2(g) \rightarrow CFCl_2(g) + Cl(g) (iv) Tropospheric pollution Choose the correct answer from the options given below

Multiple Choice Options

  • A (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
  • B (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
  • C (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
  • D (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

Step-by-Step Verified Solution

_ Tropospheric pollution : In the presence of pollutant, SO 2 converts into SO 3 . 2 S O 2 + O 2 _ 2 S O 3 _ In spring season, sunlight breaks HOCl and Cl 2 to give chlorine radicals. H O C l _ h v O _ _ H ( g ) + C _ _ l ( g ) These chlorine radicals deplete ozone layer _ High level of sulphur causes acid rain which reacts with marble and causes discolouring and disfiguring C a C O 3 + H 2 S O 4 _ C a S O 4 + H 2 O + C O 2 _ A chain reaction occurs from interaction of NO with sunlight in which NO is converted to NO 2 which absorb energy from sunlight and breaks into NO and O, which causes photochemical smog. N O 2 ( g ) _ h v N O ( g ) + O ( g )

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