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QJEEM02Chcccf: JEE Main 2002 Chemistry - Class 11 JEEM02Chcccf Solution: A metal M readily forms its sulphate MSO 4 , which is…

A metal M readily forms its sulphate MSO4, which is water-soluble. It forms its oxide MO which becomes inert on heating. It forms an insoluble hydroxide M(OH)2 which is soluble in NaOH solution. The M is :

Multiple Choice Options

  • A Mg
  • B Ba
  • C Ca
  • D Be

Step-by-Step Verified Solution

Sulphate of alkaline earth metal are sparingly soluble or almost not soluble in water whereas BeSO4BeS{O_4} is soluble in water due to high degree of solvation. Be(OH)2Be{\left( {OH} \right)_2} is insoluble in water but soluble in NaOH.NaOH.

BeO+2NaOH  BeO + 2NaOH\,\, →  Na2BeO2+H2O\to \,\,N{a_2}Be{O_2} + {H_2}O

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