Question

Rep Select the single best answer. Which of the following diagrams best represents the hydration of KF when dissolved in water? The F ion is larger in size than the Kion. S Guide a) C) O a c

Answer 1

Ans- C

Explanation-

We know KF is a basic salt, formed from the reaction of strong base KOH and weak acid HF. So it dissociate completely in water as

KF -------> K+ + F-

That means after dissociation there will be separate K+ ion present in the solution.

Now F- is a strong base which gains H+ from water to form its conjugate acid Hf as-

F- + H2O -----> HF + OH-

That means F- have the ability to bonded again to H2O molecules at H+ position. And K+ being positively charged will be surrounded by H2O molecule at O-end

So thg best picture representing this is = C

Pecture-e ج