GENERAL SCIENCE QUESTIONS AND ANSWERS 16 to 20

16. The most important ore of Aluminium is

17. ------ is the best conductor of Electricity ?

18.--------- gases is obtained by the reaction of water with Calcium Carbide ?

19.A substance which changes readily into vapour without heating is called

20.A mixture of water and alcohol can be separated by

More General Science QUESTIONS AND ANSWERS available in next pages

Health is the greatest gift, contentment is the greatest wealth -Buddha