Questions :-

1. Sulphur reacts with oxygen to form __________
(a) Sulphur dioxide
(b) Sulphur hydroxide
(c) Sulphur carbonate
(d) None of these

2. Name the gas which is most important for human life.
(a) Chlorine
(b) Oxygen
(c) Sulphur
(d) Nitrogen

3. Name the gas which is useful in water purification.
(a) Chlorine
(b) Oxygen
(c) Sulphur
(d) Nitrogen

4. Name the element which is used for making utensils.
(a) Iron
(b) Copper
(c) Aluminium
(d) All of these

5. Name the element which is useful for antiseptic.
(a)Chlorine
(b) Iodine
(c) Sulphur
(d) Nitrogen

6. Name the element which is used for making jewellery.
(a) Silver
(b) Gold
(c) Both of these
(d) None of these

7. Name the property of metal by which it can be drawn into wires.
(a) Sonorous
(b) Ductility
(c) Malleability
(d) Lustrous

8. Name the property of metals by which they can be beaten into thin sheets.
(a) Sonorous
(b) Ductility
(c) Malleability
(d) Lustrous

9. Name the property of metal which produce ringing sounds.
(a) Sonorous
(b) Ductility
(c) Malleability
(d) Lustrous

10. Name the element which is used as fertilisers to enhance the growth of plants.
(a) Nitrogen
(b) Phosphorous
(c) Both of these
(d) None of these