An element with atomic no. …………… will form an acidic oxide.

1. 3
2. 17
3. 11
4. 13

Which of the following is NOT true with respect to nitric acid?

1. It is a strong reducing agent
2. It is a strong oxidizing agent
3. It is unstable to heat
4. It liberates sulphur dioxide gas when treated with potassium sulphite

The process of electrolysis is an example of:

1. Oxidation reaction
2. Reduction reaction
3. Redox reaction
4. Displacement reaction

The catalyst used in Ostwald's process is …………… .

1. Finely divided iron
2. Graphite
3. Vanadium pentoxide
4. Platinum