ChemistryNEET 2022

Chemistry question

Which one is not a correct mathematical equation for Dalton's law of partial pressure? Here $p$ = total pressure of the gaseous mixture.

A. $p_{i} = x_{i} p_{i}^{\circ}$ , where $x_{i}$ = mole fraction of the $i$ th gas in the mixture and $p_{i}^{\circ}$ = pressure of the $i$ th gas in the pure state✓
B. $p = p_{1} + p_{2} + p_{3}$
C. $p = n_{1} \frac{R T}{V} + n_{2} \frac{R T}{V} + n_{3} \frac{R T}{V}$
D. $p_{i} = x_{i} p$ , where $p_{i}$ = partial pressure of the $i$ th gas and $x_{i}$ = mole fraction of the $i$ th gas in the mixture

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

Last revised 7 Sept 2026. Found a mistake? Tell us — corrections are the fastest thing we act on.