3(iv)
N is a metal which forms a basic oxide.
N has atomic no. 11.
(a) What is the molecular formula of the oxide of N?
(b) Write the balanced equation for the reaction that takes place when the oxide of N is treated with water.
(c) State the formula of the product obtained other than water when sulphuric acid is added to the product obtained in (b) above.
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N has atomic number 11, so its electronic configuration is 2, 8, 1 and its valency is 1.
(a) The molecular formula of the oxide is N2O (i.e., Na2O).
(b) N2O + H2O ⟶ 2NOH
(c) The formula of the product other than water is N2SO4.