The sBlock Elements - Result Question 15

####16. HCl was passed through a solution of CaCl2, MgCl2 and NaCl. Which of the following compound(s) crystallise(s)?

[2020]

(a) Only NaCl

(b) Only MgCl2

(c) NaCl,MgCl2 and CaCl2

(d) Both MgCl2 and CaCl2

Show Answer

Solution:

  1. (a) When HCl is passed through the solution Cl−ion concentration increases. Hence ionic product becomes more than solubility product. Only NaCl is crystallised due to less solubility than MgCl2 and CaCl2.
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