FUTO Chemistry 2011/2012 Day 2 Past Questions

A brand of ink containing cobalt (II) ions and copper (II) ions can be separated into its various components by

Which of the following substances is a mixture?

If the quantity of oxygen occupying a 2.7L container at a pressure of 0.825 atmospheres and 300k is reduced one half, what is pressure exerted by the remaining gas?

Which of the following substances has the lowest vapour density? (O = 16, Cl = 35.5, H = 1, C = 12)

The atomic numbers of two element X and Y are 12 and 9 respectively, the bond in the compound formed between the atoms of these two element is

The greater the difference in electrons negatively between bonded atoms, the

In the purification of town water supply, alum is used principally to

Oil spillage in ponds and creek can be cleaned up by

The solubiltty of Na₃AsSO₄ in the ethanol? (As = 75, Na = 23, O = 16, H = 1)

The basicity of tetraoxophosphate (vi) acid is