List of top Chemistry Questions on Ideal and Non-ideal solutions asked in CBSE Class Twelve Board Exam

Assertion (A): ΔmixH \Delta_{\text{mix}} H for an ideal solution is not equal to zero.
Reason (R): A–B interactions in an ideal solution are the same as between A–A and B–B interactions.
The equilibrium Cr2O72−⇌2CrO42− \text{Cr}_2\text{O}_7^{2-} \rightleftharpoons 2\text{CrO}_4^{2-} :