a) Identify redox reactions by the colour changes involved when using acidified potassium manganate(VII), and potassium iodide.
Purple to colourless and colourless to brown.
b) Describe the characteristic properties of bases as reactions with ammonium salts.
Alkali + Ammonium salt -> Ammonia + Salt + Water
Sodium Hydroxide + Ammonium Sulphate -> Ammonia + Sodium sulphate + Water
c) Classify oxides as neutral or amphoteric (Maybe a list of each please?)
Neutral - Nitrogen (II) Oxide, Carbon monoxide, Water
Amphoteric - Zinc oxide, Zinc hydroxide, Aluminium oxide and Aluminium hydroxide.
Reacting with Sodium hydroxide will give Sodium zincate and alumnate (extraction of Aluminium from bauxite) respectively
d) uses of water in the industry
Cooling tower
e) Describe the displacement of ammonia from its salts.
refer to b)
f) Describe the bonding in alkanes.
Single bond between carbon atoms and hydrogen atoms. It is saturated.
