Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

Which of the following presents the correct sequence of increasing basic nature of given oxides?

$\begin{matrix} (A) K_2O < Na_2O < Al_2O_3 < MgO \\ (B) Al_2O_3 < MgO < Na_2O < K_2O \\ (C) MgO < K_2O < Al_2O_3 < Na_2O \\ (D) MgO < K_2O < Na_2O < Al_2O_3 \end{matrix}$

Can you answer this question?

1 Answer

0 votes
The increasing order of cations is: $ Al^{3+} < Mg^{2+} < Na^{+} < K^+$
The basic nature of oxides increases with increase in the size of cation.
Therefore, the order that is the correct sequence for increasing basic size of oxides is $(B) Al_2O_3 < MgO < Na_2O < K_2O $
answered Mar 15, 2014 by balaji.thirumalai
Ask Question
student study plans
JEE MAIN, CBSE, AIPMT Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App