Solutions — JEE Main Previous Year Questions

How many JEE Main questions come from Solutions?

Solutions has contributed 168 questions to Joint Entrance Examination (Main) papers between 2016 and 2026 — an average of about 15 questions a year. That count is measured from EByAi’s bank of 55,289 JEE Main questions, not estimated from a syllabus. Every one of the 168 questions carries a written, step-by-step solution, and each is tagged to Solutions within Chemistry, so you can drill this chapter across every year at once instead of hunting through paper PDFs. Practising a chapter’s full PYQ history is the fastest way to learn the patterns examiners reuse.

Sample Solutions questions from real JEE Main papers

These are 5 real questions from the bank — exactly as asked, with the answer one tap away. All 168 Solutions questions (with full written solutions) are available in practice.

1. Question 1 · JEE Main 2026

   Consider the following aqueous solutions. I. 2.2 g Glucose in 125 mL of solution. II. 1.9 g Calcium chloride in 250 mL of solution. III. 9.0 g Urea in 500 mL of solution. IV. 20.5 g Aluminium sulphate in 750 mL of solution. The correct increasing order of boiling point of these solutions will be : [Given : Molar mass in g mol −1 : H = 1, C = 12, N = 14, O = 16, Cl = 35.5, Ca = 40, Al = 27 and S = 32]
   1. (A)III < I < II < IV
   2. (B)II < III < IV < I
   3. (C)II < III < I < IV
   4. (D)I < II < III < IV
   Show answerAnswer

   Answer: (D) I < II < III < IV

2. Question 2 · JEE Main 2025

   Which of the following binary mixtures does not show the behaviour of minimum boiling azeotropes?
   1. (A)${\text{CH}}_3\text{OH}+{\text{CHCl}}_3$
   2. (B)${\text{C}}_6{\text{H}}_5\text{OH}+{\text{C}}_6{\text{H}}_5{\text{NH}}_2$
   3. (C)${\text{H}}_2\text{O}+{\text{CH}}_3{\text{COC}}_2{\text{H}}_5$
   4. (D)${\text{CS}}_2+{\text{CH}}_3{\text{COCH}}_3$
   Show answerAnswer

   Answer: (B) ${\text{C}}_6{\text{H}}_5\text{OH}+{\text{C}}_6{\text{H}}_5{\text{NH}}_2$

3. Question 3 · JEE Main 2025

   When a non-volatile solute is added to the solvent, the vapour pressure of the solvent decreases by 10 mm of Hg . The mole fraction of the solute in the solution is 0.2 . What would be the mole fraction of the solvent if decrease in vapour pressure is 20 mm of Hg ?
   1. (A)0.2
   2. (B)0.4
   3. (C)0.8
   4. (D)0.6
   Show answerAnswer

   Answer: (D) 0.6

4. Question 4 · JEE Main 2025

   1.24 g of AX 2 (molar mass 124 g mol −1 ) is dissolved in 1 kg of water to form a solution with boiling point of 100.015°C, while 25.4 g of AY 2 (molar mass 250 g mol −1 ) in 2 kg of water constitutes a solution with a boiling point of 100.0260°C. K b (H 2 O) = 0.52 kg mol −1 Which of the following is correct?
   1. (A)AX 2 and AY 2 (both) are completely unionised.
   2. (B)AX 2 and AY 2 (both) are fully ionised.
   3. (C)AX 2 is completely unionised while AY 2 is fully ionised.
   4. (D)AX 2 is fully ionised while AY 2 is completely unionised.
   Show answerAnswer

   Answer: (D) AX 2 is fully ionised while AY 2 is completely unionised.

5. Question 5 · JEE Main 2025

   Given below are two statements : Statement (I): NaCl is added to the ice at 0°C, present in the ice cream box to prevent the melting of ice cream. Statement (II): On addition of NaCl to ice at 0°C, there is a depression in freezing point. In the light of the above statements, choose the correct answer from the options given below :
   1. (A)Both Statement I and Statement II are false
   2. (B)Statement I is true but Statement II is false
   3. (C)Both Statement I and Statement II are true
   4. (D)Statement I is false but Statement II is true
   Show answerAnswer

   Answer: (C) Both Statement I and Statement II are true

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