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ChemistryNEET 2020

Chemistry question

HCl gas was passed through a solution containing CaCl2\mathrm{CaCl_2}, MgCl2\mathrm{MgCl_2} and NaCl. Which compound(s) crystallise(s) out?

  1. A.Both MgCl2\mathrm{MgCl_2} and CaCl2\mathrm{CaCl_2}
  2. B.Only NaCl✓
  3. C.Only MgCl2\mathrm{MgCl_2}
  4. D.NaCl\mathrm{NaCl}, MgCl2\mathrm{MgCl_2} and CaCl2\mathrm{CaCl_2}

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

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