The purest form of water is
A). Tap water
B). Rain water
C). Ground water
D). Distilled water
Rain water
The purest form of water is rain water.
1. The Bhopal gas tragedy was caused by the gas
2. Gunpowder consist ofa mixture of
4. If lime water is kept in the air, it turns milky due to presence of :
5. Question 16.22:What are biodegradable and non-biodegradable detergents? Give one example of each.
6. Among the fuels given below the one with highest calorific value is
7. Which of the following is used as a lubricant in heavy machines?
8. Which of the following metals form an amalgam with other metals ?
9. In chemical terms, what are alums used for purifying water for drinking purposes ?
10. Question 11.29:What do you understand by (a) inert pair effect (b) allotropy and (c) catenation?