(a) A colourless gas P was given off when dilute tetraoxosulphate (VI) acid was added to zinc salt Q. On bubbling the gas through lime water, a white precipitate R was formed. Identify P, Q and R.
(b) Name a suitable apparatus that could be used to perform each of the following activities in the laboratory
(i) storage of dilute silver trioxonitrate (V):
(ii) heating copper metal;
(iii) separation of a mixture of water and Kerosene. Give one reason for each of your answers in (b)
Explanation
(a) = CO\(_2\) or Carbon IV oxide gas
Q = ZnCO\(_3\) or Zinc trioxocarbonate IV gas
R = CaCO\(_3\) or calcium trioxocarbonate IV gas
(b)(i) Dark brown/amber coloured bottle
(ii) Bunsen burner
(iii) Separating funnel