JEE Main 2022 · 30 Jun · Shift 1 · Chemistry Q63

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ChemistrySingle correct+4 / -1Question 63 of 90

For a solution of the gases A, B, C and D in water at 298 K, the values of Henry's law constant ( $K_H$ ) are 30.40, 2.34, $1.56\times10^{-5}$ and 0.513 k bar respectively. In the given graph, the lines marked as 'p' and 's' correspond respectively to :

$Partial pressure (k bar) against mole fraction of water: four falling straight lines p (steepest, highest), q, r and s (nearly flat, lowest).$

A and C

B and A

D and A

C and D

Answer and worked solution

Official answer: A

Henry's law $p=K_Hx$ : the steepest line p has the largest $K_H$ (A, 30.40) and the flattest s the smallest (C).

(A)

Topics:Concentration and solubility

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JEE Main 2022 · 30 Jun · Shift 1, Chemistry question 63