1. Which of the following statement is correct ?

2. Atomic number of Mn is 25 what is the electronic configuration in the ground state ?

3. On heating aldehydes with Fehlings solution we get a precipitate whose colour is ?

4. Which catalyst is used in contact process?

5. What is maximum number of electrons in an orbital with m (magnetic quantum number) = 3

6. Which statement is consistent with Hunds rule.

7. Which of the following is mineral fiber.

8. When an electron is moving with velocity of 2.188 x 106 ms-1 in the first orbit of Bohrs model of hydrogen. The de Broglie wavelength of electron is ?

9. When methl iodide and ethyl iodide are treated with sodium metal possible major products are obtained ?

10. Which of the following is mineral fiber.