UNICAL Chemistry 2011/2012 Past Questions

What mass of anhydrous sodium trioxocarbonate(iv) is present in 500cm³ of 0.1mol/dm³ of the solution (Na = 23, C = 12, O = 16)

The oxidation state of oxygen in tetraoxosuphate (iv)acid is

Metals of the first transition series have special properties which are different from those of group I and group II element because they have partially filled

Separation of different carotenes from carrot root uses a method

Solution	W	X	Y	Z
pH	8	12	4	2

From the table, which of the solutions W, X, Y and Z will liberate carbon(iv)oxide from a trioxocarbonate(iv) salt?

50cm³ of a saturated solution of KNO₃ at 40°C contained 5.05g of the salt. What is the solubility of KNO₃ at 40°C (K = 39, N = 14, O =16)

A brand of ink containing cobalt(III), copper(II) and Iron (II) ions can best be separated into its various compounds by

If the rate law obtained for a given reaction is given as rate = K[X]ⁿ[Y]^m, what is the overall order of the reaction.

A molecular formula shows __________ in a molecule.

Give the total mass of copper in 1gram of copper(II) sulphate (Cu = 40, S = 32, O = 16)