- How is the moisture present in SO2 gas removed?
- Acid rain forms when oxides of sulphur and nitrogen react with water. What are these oxides chemically?
- Identify a viscous liquid that react with table sugar (C12H22O11) giving a charred (black) mass. Give the reaction involved.
- Give two examples of reactions in which H2SO4 behaves as: (a) Strong acid (b) a dehydrating agent (c) an oxidizing agent
- Explain with reason, why: (a) Conc. H2SO4 should always be added to H2O but never H2O to the acid? (b) Sugar is charred in contact with conc. H2SO4?
- Write any two differences between the bleaching action of Cl2 and SO2.
- What happens when H2S is passed through acidified potassium permanganate solution?
- What happens when gas obtained by heating oxalic acid in presence of conc. H2SO4 is passed through heated caustic soda?
- Write balanced chemical reactions for the laboratory preparation of: (a) Hydrogen Sulphide (b) Sulphurdioxide
- What happens when a moist red flower is introduced into a gas jar containing SO2 gas?
- Give a reaction of each to show: (a) SO2 as an oxidizing agent (b) H2S as an analytical agent
Sulphur- Old is Gold
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