Science Quiz for SSC CHSL and Railways and SSC CGL

1. Which among the following happens in an oxidation reaction?

A. Electrons are gained

B. Electrons are lost

C. Protons are gained

D. Protons are lost

2. Which among the following is popularly called Laughing Gas?

A. Nitric oxide

B. Nitrogen dioxide

C. Nitrous oxide

D. Nitrogen peroxide