The number of protons in a negatively charged atom (anion) is

In oxidation

1. Hydrogen is displaced from a substance.
2. An electropositive element is added to or proportion of electropositive element increases in a substance.

Select the correct answer using the code given below :

Thermometer A and B have ice points marked at 15 and 25 and steam points at 75 and 125 respectively. When thermometer A measures the temperature of a bath as 60, the reading of B for the same bath is

Which one among the following statements regarding heart sound is correct?

With regard to animal breeding, which one among the following is not correct?

A man was trapped in a room of a building which was up in flames. Fire-fighters had to break window panes which were filled in smoke to take him out. Once the injured person is out, he should be observed/treated for