S Block Elements Question 233

Question: Which of the following is the smallest cation

[MP PMT 1993]

Options:

A) $ N{{a}^{+}} $

B) $ M{{g}^{+2}} $

C) $ C{{a}^{+2}} $

D) $ A{{l}^{+3}} $

Show Answer

Answer:

Correct Answer: D

Solution:

$ C{{a}^{+2}}>\ N{{a}^{+}}\ >\ M{{g}^{+2}}\ >\ A{{l}^{+3}} $