Which one of the following is most acidic?
A). Al2O3
B). Na2O
C). MgO
D). CaO
1. Cooking gas is a mixture of
2. Which of the following is not a Halon gas ?
4. Among the following the hardest metal is
5. The metal chiefly used for galvanising iron is
6. Tar roads get damaged if there is
9. An inert gas mixed with oxygen given to patients suffering from restricted breathing is
10. The long range potential of nu I clear energy in India depends on i its reserves of