(i) White fumes form in the gas jar which disappear after sometime.
- The level of water rises in the gas jar.
(ii) P(s) + O2(g) ------>P2O5(s)
P2 O(s) + 3H2O(l)--------->2H4PO4(aq)
(iii) Magnesium react with oxygen and nitrogen hence greater of fraction of air is used.
(iv) (a) Blue litmus changed to red as remained red. The solution was acid due to phosphoric
(b) Red litmus changed to blue as blue remained blue due to formation of basic magnesium hydroxide ammonia solution.
(v) – Pass air over conc. KOH / NaOH to absorb CO2
- Pass the remaining gases over hot copper solid which reacts with oxygen.
- Collect the remaining gas over water. The gas is mainly nitrogen.
maurice.mutuku answered the question on October 14, 2019 at 06:21
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