Which of the following is not a Halon gas ?
1). methane
2). Carbon tetra chloride
3). iodomethane
4). bromomethane
1. The noble gas used in radiotherapy is
2. Oxide of sulphur present in the atmosphere are washed down by rains to cause :
4. Which among the following is false about natural rubber?
5. Milk is a colloidal system in which:
6. The substance that is added to make natural rubber strong and more bouncy is
7. The least preferred technique in the disposal of Municipal Solid Waste is
8. Question 4.9:How do you express the bond strength in terms of bond order?
9. The luster of a metal is due to
10. A pair of contrasting characters controlling the same trait is called