Considering Ellingham diagram, which of the following metals can be used to reduce alumina?
List I List II
a. 2SO 2(g) +O 2(g) 
2SO 3(g) i. Acid rain
b. HOCl (g) +hv 
OH+ 
Cl ii. Smog
c. CaCO 3 +H 2 SO 4 
CaSO 4 +H 2 O+CO 2 iii Ozone depletion
d NO 2(g) + hv 
NO (g) +O (g) iv Tropospheric pollution
Choose the correct answer from the options given below abed
Text Solution
Verified by Experts2SO 2 (g) + O 2 (g) 
2SO 3 (g) 
[iv] Tropospheric pollution
HOCl(g) + hv 
+ 
(iii) Ozone depletion
CaCO 3 + H 2 SO 4 
CaSO 4 + H 2 O + CO 2 
(i) Acid rain
NO 2 (g) + hv 
NO(g) + O(g) 
(ii) Smog
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