(a) An aqueous solution of a salt was added to excess sodium sodium trioxocarbonate (IV) solution in a test tube. There was effervescence, the test tube became warm and a white precipitate was observed. State three inferences that could be drawn from these observations.

(b) Consider the following salts; NH\(_4\)Cl; PbSO\(_4\); NaHCO\(_3\) and Cu(NO\(_3\))\(_2\).

  Select from the list, the salt(s) which:

(i) would not readily dissolve in water;

(ii)produce(s) effervescence with dilute mineral acids;

(iii) decompose(s) on heating;

(iv) dissolve(s) in water to form an alkaline solution;

(v) sublime(s) on heating

(c)  A solution of an acid was titrated with sodium hydroxide solution using methylorange as the indicator. State three precautions that are necessary when carrying out such an experiment.

The IUPAC nomenclature for the hydrocarbon above is 

The molecule with the highest number of lone pair of electrons is 

The composition of petroleum varies because it is a 

In the table above, the two compounds that will combine in the presence of an acid-catalyzed compound, V is