JEE Main 2021 · ChemistryNumerical answerNumerical valueEasyApplication

JEE Main 26 August 2021, Shift 1, Chemistry Q54

Question 54 of 90 in this shift, Chemistry question 24 of 30, Section B.

Of the following four aqueous solutions, total number of those solutions whose freezing point is lower than that of 0.10 M

\mathrm{C_2H_5OH}

is __________. (Integer answer) (i) 0.10 M

\mathrm{Ba_3(PO_4)_2}

(ii) 0.10 M

\mathrm{Na_2SO_4}

(iii) 0.10 M KCl (iv) 0.10 M

\mathrm{Li_3PO_4}

Official answer

NTA final key.

Chapter: Solutions
Topic: Colligative Properties
Idea tested: Van't Hoff Factor (i)

Same idea in other shifts

Asked 7× in all

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31 Aug 2021, Shift 1 · Q33Which one of the following 0.10 M aqueous solutions will exhibit the largest freezing point depression ?EasySingle correct
25 Feb 2021, Shift 1 · Q541 molal aqueous solution of an electrolyte $\mathrm{A_2B_3}$ is 60% ionised. The boiling point of the solution at 1 atm is ________ K.…MediumNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.