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Match List - I with List - II. Column I Column II ( a ) 2 S O 2 ( g ) + O 2 ( g ) → 2 S O 3 ( g ) (a) 2SO_2(g) + O_2(g) \rightarrow 2SO_3(g) ( a ) 2 S O 2 ( g ) + O 2 ( g ) → 2 S O 3 ( g )
(i) Acid rain ( b ) (b) ( b ) HOCl ( g ) → h ν O ⋅ H + C ⋅ l (g) \xrightarrow{h\nu} \overset{\cdot}{O}H + \overset{\cdot}{C}l ( g ) h ν O ⋅ H + C ⋅ l
( c ) C a C O 3 + H 2 S O 4 → C a S O 4 + C O 2 + H 2 O (c) CaCO_3 + H_2SO_4 \rightarrow CaSO_4 + CO_2 + H_2O ( c ) C a C O 3 + H 2 S O 4 → C a S O 4 + C O 2 + H 2 O
( d ) N O 2 ( g ) → h ν N O ( g ) + O ( g ) (d) NO_2(g) \xrightarrow{h\nu} NO(g) + O(g) ( d ) N O 2 ( g ) h ν NO ( g ) + O ( g )
hard
RedoxReactions
2021
chemistry
(a)-(a)-(i) (b)-(b)-(ii) (c)-(c)-(iii) (d)-(d)-(iv)
(a)-(a)-(ii) (b)-(b)-(iii) (c)-(c)-(iv) (d)-(d)-(i)
(a)-(a)-(iv) (b)-(b)-(iii) (c)-(c)-(i) (d)-(d)-(ii)
(a)-(a)-(iii) (b)-(b)-(ii) (c)-(c)-(iv) (d)-(d)-(i) Explanation To solve this problem, we need to match the chemical reactions in List I with their corresponding environmental effects in List II. Let's analyze each reaction and its environmental impact: 1. R e a c t i o n ( a ) : ( 2 S O 2 ( g ) + O 2 ( g ) → 2 S O 3 ( g ) ) − \newline 1. Reaction (a): ( 2SO_2(g) + O_2(g) \rightarrow 2SO_3(g)) \newline - 1. R e a c t i o n ( a ) : ( 2 S O 2 ( g ) + O 2 ( g ) → 2 S O 3 ( g )) −
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(iv) Tropospheric pollution
This reaction involves the conversion of sulfur dioxide (SO
) to sulfur trioxide (SO
).
Sulfur trioxide can react with water to form sulfuric acid, contributing to acid rain.
Therefore, this reaction is associated with acid rain.
2. R e a c t i o n ( b ) : ( H O C l ( g ) → h ν O ⋅ H + C ⋅ ) − \newline 2. Reaction (b): (HOCl (g) \xrightarrow{h\nu} \overset{\cdot}{O}H + \overset{\cdot}{C}) \newline - 2. R e a c t i o n ( b ) : ( H OCl ( g ) h ν O ⋅ H + C ⋅ ) − This reaction involves the photodissociation of hypochlorous acid (HOCl) into hydroxyl radicals and chlorine radicals.
Chlorine radicals are known to deplete ozone in the stratosphere.
Therefore, this reaction is associated with ozone depletion.
3. R e a c t i o n ( c ) : ( C a C O 3 + H 2 S O 4 → C a S O 4 + C O 2 + H 2 O ) − \newline 3. Reaction (c): ({CaCO}_3 + {H}_2{SO}_4 \rightarrow {CaSO}_4 + {CO}_2 + {H}_2{O}) \newline - 3. R e a c t i o n ( c ) : ( C a CO 3 + H 2 SO 4 → C a SO 4 + CO 2 + H 2 O ) − This reaction describes the reaction of calcium carbonate with sulfuric acid, producing calcium sulfate, carbon dioxide, and water.
This is a typical reaction that occurs in the presence of acid rain, which affects limestone and marble structures.
Therefore, this reaction is associated with acid rain.
4. R e a c t i o n ( d ) : ( N O 2 ( g ) → h ν N O ( g ) + O ( g ) ) − \newline 4. Reaction (d): ({NO}_2(g) \xrightarrow{h\nu} {NO}(g) + {O}(g)) \newline - 4. R e a c t i o n ( d ) : ( NO 2 ( g ) h ν NO ( g ) + O ( g )) − This reaction involves the photodissociation of nitrogen dioxide (NO
) into nitric oxide (NO) and atomic oxygen.
This reaction is a part of the photochemical smog formation process.
Therefore, this reaction is associated with smog.
Based on the analysis, we can match the reactions with their effects:
− ( a ) → ( i )
- (a) \rightarrow (i) − ( a ) → ( i ) Acid rain
− ( b ) → ( i i i )
- (b) \rightarrow (iii) − ( b ) → ( iii ) Ozone depletion
− ( c ) → ( i )
- (c) \rightarrow (i) − ( c ) → ( i ) Acid rain
− ( d ) → ( i i )
- (d) \rightarrow (ii) − ( d ) → ( ii ) Smog
Thus, the correct option is:
Option 3:
( a ) → ( i ) , ( b ) → ( i i i ) , ( c ) → ( i ) , ( d ) → ( i i ) (a) \rightarrow (i), (b) \rightarrow (iii), (c) \rightarrow (i), (d) \rightarrow (ii) ( a ) → ( i ) , ( b ) → ( iii ) , ( c ) → ( i ) , ( d ) → ( ii )