JEE Main 2022ChemistrySolutionsEasyNumerical

JEE Main 2022 — Solutions Question with Solution

JEE Main 2022 (24 Jun Shift 1)

Question

The osmotic pressure of blood is 7.47 bar at 300 K. To inject glucose to a patient intravenously, it has to be isotonic with blood. The concentration of glucose solution in gL-1 is (Molar mass of glucose =180 g mol-1, R=0.083 Lbar-1 mol-1) (Nearest integer)

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Show full solutionCorrect answer: 54
Correct answer
54

Step-by-step explanation

Osmotic pressure, π=iCRT

i= van't hoff factor

C= concentration in molarity

R= universal gas constant

T= temperature

C= Molarity

=molesLitre

=ωGMω/Litre

π=iCRT

i=1 for glucose as it neither associates nor dissociates in solution.

7.47=1×C×0.083×300

7.47=1×ω180×0.083×300

ω=7.47×1800.083×300=54 g/Lit

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About this question

This is a previous-year question from JEE Main 2022, covering the Solutions chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.