Which among the following has the maximum density?
1). Water
2). Ice
3). Ethylene
4). Acetone
2. Why does a cannon recoil after firing ?
3. Petroleum consists of a mixture of
4. Atomic number is the number equal to
5. Humburger effect is otherwise known as
7. When water itself combines chemically with some element or mineral it is called
8. Who among the following has scored 2 triple hundreds in test matches?
9. The ultraviolet rays can be checked by -
10. Atomic number of which of the following elements is greater than that of Aluminium?