Question

$A+B \rightleftharpoons AB; K=1 \times 10^{2}$ $E+F \rightleftharpoons EF; K=1 \times 10^{-2}$ Out of AB and EF, which one is more stable AB or EF ?

Answer 1

Given, the reaction    

$A+B\quad \quad \rightleftharpoons \quad \quad AB$

$K=1 \times 10^{2}$

Another reaction given

$E+F\quad \quad \rightleftharpoons \quad \quad EF$

 $K=1 \times 10^{-2}$

   A reaction is said to be stable or unstable depending on K value. In the first reaction, K value is 100 and in the second reaction K value is 0.01.

   Since the k value  in the first reaction is more than the second reaction, therefore first reaction is more stable than the second reaction.

AB is more stable than EF.

Answer 2

HEY MATE......☺☺
$\huge\red{ AB \:is\:more\:Stable\:than\:EF}$