Which of the following is not an isotope of hydrogen?
A). Tritium
B). Deuterium
C). Protium
D). Yttrium
1. Bauxite is an alloy of which of the following metals ?
2. The element used for making solar cells is
3. Which one of the following events takes place during inspiration in man?
5. Diamonds are glittering and attractive because light Incident on them undergoes
6. Very small time intervals are accurately measure by
8. About 30% of CO2 is transported as