Chemistry MCQs Test 07 Online Preparation

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

2. 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 ?

3. Which of the following is mineral fiber.

4. Which of the following statement is correct ?

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

6. Which of the following is mineral fiber.

7. Which statement is consistent with Hunds rule.

8. Which catalyst is used in contact process?

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

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