You will NOT be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper. The time given at the head of this paper is the time allowed for writing the answers. Chlorine reacts with white phosphorus forming phosphorus trichloride and phosphorus pentachloride . Write balanced equation for the formation of each of these compounds.
Molten sodium reacts with chloride to form sodium chloride.
The electrolysis of lead bromide liberates lead and bromine. Copper sulphate crystals are dehydrated by sulphuric acid. A vessel contains N molecules of oxygen at a certain temperature and pressure. One flask contain oxygen and the other hydrogen. Describe, in each case, one chemical test that would enable you to distinguish between the following pairs of chemicals.