What is the chemical formula of aluminium nitride?
1). AlN
2). Al2N
3). AlN2
4). AlN2
1. Which halide is used in making sensitive emulsion on photograhic film?
3. Which of the following constitutes highest percentage of Green House gases?
4. Who discovered the atom bomb?
5. The temperature of oxyacetylene flame is around
6. The electronic configuration of an atom having atomic number 20 is
7. Which drug is used as a Nonsteroidal anti-inflammatory drug?
8. Question 3.1:What is the basic theme of organisation in the periodic table?
9. Which variety of coal contains recognisable traces of the original plant material ?
10. A level of atmosphere which is composed partly of electrons and positive ions is called