Q54Short answer
An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.
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A — Na; B — NaOH; C — NaAlO2 2Na + 2H2O → 2NaOH + H2 Al2O3 + 2NaOH → 2NaAlO2 + H2O Heat → 2ZnO(s) + 2SO (g)