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MHT CET202310 May 2023Morning ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Identify the method used to obtain SO ₂ gas in industry.

Options

  1. ABy burning sulphur in air
  2. BBy treating sodium sulphite with dil. sulphuric acid
  3. CBy treating sodium sulphite with dil. hydrochloric acid
  4. DBy roasting zinc sulphide and iron pyrites

Correct answer

D. By roasting zinc sulphide and iron pyrites

Step-by-step solution

In industry, sulphur dioxide can be prepared by roasting zinc sulphide and iron pyrites. aligned & 2 ZnS _ ( s ) +3 O _ 2( ~g ) 2 ZnO _ ( s ) +2 SO _ 2( ~g ) & 4 FeS _ 2( ~s ) +11 O _ 2( ~g ) 2 Fe ₂ O _ 3( ~s ) +8 SO _ 2( ~g ) aligned

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