S Block Elements Question 77
Question: Which of the following ions forms highly soluble hydroxide in water
[CPMT 1974, 76, 79, 82]
Options:
A) $ {{K}^{+}} $
B) $ Z{{n}^{++}} $
C) $ A{{l}^{+++}} $
D) $ C{{a}^{++}} $
Show Answer
Answer:
Correct Answer: A
Solution:
$ {{K}^{+}} $ is highly soluble because of high hydration energy.