Identify the method used to obtain SO_2 gas in industry

MHT CET 2023 Chemistry question

Identify the method used to obtain SO gas in industry

(A)By burning sulphur in air
(B)By treating sodium sulphite with dil. Sulphuric acid
(C)By treating sodium sulphite with dil. Hydrochloric acid
(D)By roasting zinc sulphide and iron pyritesCorrect

Answer: (D)

Solution

In industry, is obtained as a by-product of roasting sulphide ores such as zinc blende and iron pyrites: and . Treating sodium sulphite with dilute or HCl ((b), (c))

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Question ID VK-095326