Question 1 Report
TEST OF PRACTICAL KNOWLEDGE QUESTION
(a) Consider the following compounds: MnO\(_2\), NaHCO\(_3\), Na\(_2\)CO\(_3\), NH\(_4\)CI cnd Pb(NO\(_3\))\(_2\) Select the compound(s) which;
(i) has a black colour
(ii) is a bas.c oxide:
(ii) sublime on heating
(iv) dissolves in water to give a solution of pH less than 7.
(b) State the colour of each af the following aqueous Solutions:
(i) Calcium hydroxide;
(ii) iron (III) trioxonitrate (V):
(ii) Copper (II) tetraoxosulphate (VI);
(iv) Poassium heptaoxodichromate (VI).
(c) Give one example of a neutral oxide which is a colourless liquid at room temperature.
(d) Draw and label a diagram for a set-up that can be used for the separation of two immiscible liquids