Chemistry Past Questions and Answers

The pressure on 100 cm<sup style='font-size: smaller;'>3</sup> of oxygen gas at 35°C is 750mm of Hg.What would be the volume of the gas if the pressure is increased to 1000mm of Hg without changing the temperature?

Which of the following bonds exist in crystalline ammonium chloride (NH<sub style='font-size: smaller;'>4</sub>Cl)?

When a pressure cooker is half filled with water, and heated to boiling point, then the pressure inside the cooker will?

An element X has two isotopes, <sup style='font-size: smaller;'>20</sup><sub style='font-size: smaller;'>10</sub>X and <sup style='font-size: smaller;'>20</sup><sub style='font-size: smaller;'>10</sub>X,<br/>present in the ratio 1:3. The relative atomic mass of X would be?

Which of the following is a neutralization reaction? Addition of