Which of the following processes is responsible for causing rain?
1). Filtration
2). Evaporation and Condensation
3). Evaporation
4). Condensation
1. An example of semiconductor is
2. Which one of the following is found in kidney stones
3. Who developed Hydrogen Bomb?
4. The gas used for artificial fruit ripening of green fruit is
5. Which one among the following is not a mixture?
6. Which is the highest quality of hard coal?
7. Which halide is used in making sensitive emulsion on photograhic film?
8. Nucleus of an atom consists of
9. An example of heterocyclic compound is
10. Question 16.12:Name a substance which can be used as an antiseptic as well as disinfectant.