Identify the substance underlined in each of the following

Compounds (10)

Identify the substance underlined in each of the following:

  1. The electrode that increases in mass during the electro-refining of silver.
  2. The acid that is a dehydrating as well as a drying agent.
  3. The catalyst used to oxidize ammonia into nitric oxide.

Answer

(i) cathode or negative electrode or reducing electrode or pure silver or pure Silver strip or pure silver metal or pure Ag

(ii) concentrated sulphuric acid or conc. H2SO4

(iii) Platinum or Pt or Cu (copper) or Ni (Nickel) or Rh (Rhodium)

  • Exam Year: 2020