Question

2.
Give one example each of the reaction of a (i) metal, (ii) non-metal, with oxygen to
explain the 'opposite nature of the oxides formed in the two cases.
at the students form two teams: M (Metals) and N (Non-metals); let the two teams​

Answer 1

Answer:

(i) 4Na + O2 --> 2Na2O

(ii) N +O2->NO2

Na2O is a basic oxide while NO2 is an acidic oxide. The first one has an electrovalent bond and the second one is formed by a covalent bond. The first one dissolves in water to form a base(NaOH) while the latter one dissolves to form two acids(HNO3 and HNO2)

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