ABU Chemistry 2018/2019 Past Questions

The gas equation: ${P_{1}V_{1}}/{T_{1}} = {P_{2}V_{2}}/{T_{2}}$ is made up of Charles law and _______ Law

The bleaching action of chlorine is through the process of

How many molecules are there in 14g of nitrogen gas at S.T.P. (N = 14, Avogadro number = 6.0e23/mol)

________________ are allotropes of carbon.

Which of the following metals reacts slowly with cold water?

Calculate the mass of magnesium that would be deposited by 8 faradays of electricity?[Mg = 24]

How many moles of oxygen molecules would be produced from the decomposition of 2.5 moles of potassium trioxochlorate (V)?

An oxide XO₂ has a vapour density of 32. What is the atomic mass of X?

When air, which contains the gases: oxygen, nitrogen, carbon dioxide, water vapour and the rare gases, is passed through alkaline pyrogallol and then over quicklime, the only gases left are

The amount of methane molecules, CH₄, in 8.0 grams of methane is