Q. Carnallite in solution in water shows the properties of
A) $K^{+},Mg^{2 +},Cl^{-}$
B) $K^{+},\ Cl^{-},\ {SO}_{4}^{2 -},\ Br^{-}$
C) $K^{+},Mg^{2 +},{CO}_{3}^{2 -}$
D) $K^{+},Mg^{2 +},Cl^{-},\ Br^{-}$
Explanation
(a)
Ionic compounds break into their constituent ions when dissolved in water.
Carnallite is double salt having composition,
$KCl.MgCl_{2}.6H_{2}O.$ It gives $K^{+},\ Cl^{-}\ and\ Mg^{2 +}\$ions when dissolved in water.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.