1.

When a metal X is treated with cold water, it gives a base Y with molecular formulaXOH (molecular mass=40) and liberates a gas Z which easily catches​

Answer»

Answer:

  • SODIUM (Na) and potassium (K) react with cold WATER to form basic salt NaOH and KOH respectively. The molecular MASS of NaOH is 40. So, X is Na and Y is NaOH.

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