Sulphur And Its Compounds - 1


Chemistry Class 10
1. Sulphur is a non-metal and a bad conductor of heat and electricity.

   
2. Sulphur obtained by Frasch method is 100% pure.

   
3. Plastic sulphur is one of the crystalline allotropes of sulphur.

   
4. Rhombic sulphur is stable between 96oC to 119oC.

   
5. Sulphur is insoluble in water.

   
6. Sulphur is used in medicines both for external and internal use like purification of blood and a remedy for skin diseases.

   
7. Sulphur dioxide is reduced to sulphur trioxide during contact process.

   
8. Moist gases are dried by oleum in contact process.

   
9. Concentrated sulphuric acid is hygroscopic in nature.

   
10. Sulphuric acid is a strong monobasic acid.

   
11. Concentrated sulphuric acid reacts with copper to produce hydrogen gas.

   
12. Concentracted sulphuric acid is a strong reducing agent.

   
13. On dehydration of ethyl alcohol by conc H2SO4 ethene is produced.

   
14. Chemical formula of ammonium sulphate is NH4SO4

   
15. Sulphuric acid is used in the manufacture of pigments.

   
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