1. Which of the following reactions does not involve either oxidation or reduction?

2. KMnO reacts with oxalic acid according to the equation 2MnO + 5CO + 16H+ → 2Mn +10CO+ 8H O Here 20 mL of 0.1 M KMnO is equivalent to

3. One mole of NH

4. What is n-factor?

5. The oxidation number of Mn is maximum in

6. The oxidation process involves

7. Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?

8. The oxidation number of Xe in BaXeO is

9. The colourless solution of silver nitrate slowly turns blue on adding copper chips to it because of

10. A standard reduction electrode potentials of four metals are A = -0. 250 V, B = -0. 140 V, C = -0. 126 V, D = -0. 402 V The metal that displaces A from its aqueous solution is: