Solutions

JEE Advanced · Chemistry · 29 past questions

1. Q1 2026 Paper 2

   In a solvent $\mathbf{S}$, a compound $\mathbf{B}$ is partially dissociated into $\mathbf{C}$ and…

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2. Q2 2026 Paper 2

   Question Stem for Question Nos. 15 and 16…

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3. Q3 2026 Paper 2

   Question Stem for Question Nos. 15 and 16…

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4. Q4 2025 Paper 2

   At 300 K, an ideal dilute solution of a macromolecule exerts osmotic pressure that is expressed in terms of…

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5. Q5 2024 Paper 2

   Vessel-1 contains **w₂** g of a non-volatile solute **X** dissolved in **w₁** g of water. Vessel-2 contains…

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6. Q6 2023 Paper 2

   50 mL of 0.2 molal urea solution (density = 1.012 g mL$^{-1}$ at 300 K) is mixed with 250 mL of a solution…

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7. Q7 2022 Paper 2

   An aqueous solution is prepared by dissolving 0.1 mol of an ionic salt in 1.8 kg of water at 35 ºC. The salt…

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8. Q8 2021 Paper 1

   Question Stem for Question Nos. 9 and 10…

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9. Q9 2021 Paper 1

   Question Stem for Question Nos. 9 and 10…

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10. Q10 2020 Paper 2

    Liquids $\mathbf{A}$ and $\mathbf{B}$ form ideal solution for all compositions of $\mathbf{A}$ and…

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11. Q11 2019 Paper 1

    On dissolving 0.5 g of a non-volatile non-ionic solute to 39 g of benzene, its vapor pressure decreases from…

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12. Q12 2019 Paper 2

    The mole fraction of urea in an aqueous urea solution containing 900 g of water is 0.05. If the density of…

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13. Q13 2018 Paper 1

    Liquids A and B form ideal solution over the entire range of composition. At temperature T, equimolar binary…

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14. Q14 2018 Paper 1

    The plot given below shows $P-T$ curves (where $P$ is the pressure and $T$ is the temperature) for two… (with a figure)

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15. Q15 2017 Paper 1

    For a solution formed by mixing liquids L and M, the vapour pressure of L plotted against the mole fraction… (with a figure)

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16. Q16 2016 Paper 1

    The mole fraction of a solute in a solution is 0.1. At 298 K, molarity of this solution is the same as its…

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17. Q17 2016 Paper 2

    Mixture(s) showing positive deviation from Raoult's law at 35 °C is(are)

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18. Q18 2015 Paper 1

    If the freezing point of a 0.01 molal aqueous solution of a cobalt(III) chloride-ammonia complex (which…

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19. Q19 2014 Paper 1

    A compound $H_2X$ with molar weight of 80 $g$ is dissolved in a solvent having density of 0.4 $g\ ml^{-1}$.…

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20. Q20 2014 Paper 1

    $MX_2$ dissociates into $M^{2+}$ and $X^-$ ions in an aqueous solution, with a degree of dissociation…

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21. Q21 2012 Paper 1

    29.2% (w/w) HCl stock solution has a density of 1.25 g mL$^{-1}$. The molecular weight of HCl is 36.5 g…

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22. Q22 2012 Paper 2

    For a dilute solution containing 2.5 g of a non-volatile non-electrolyte solute in 100 g of water, the…

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23. Q23 2011 Paper 1

    Dissolving 120 g of urea (mol. wt. 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity…

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24. Q24 2011 Paper 2

    The freezing point (in $^\circ$C) of a solution containing 0.1 g of K$_3$[Fe(CN)$_6$] (Mol. Wt. 329) in 100 g…

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25. Q25 2009 Paper 1

    The Henry's law constant for the solubility of N$_2$ gas in water at 298 K is $1.0\times10^{5}$ atm. The mole…

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26. Q26 2008 Paper 1

    Paragraph for Question Nos. 67 to 69…

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27. Q27 2008 Paper 1

    Paragraph for Question Nos. 67 to 69…

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28. Q28 2008 Paper 1

    Paragraph for Question Nos. 67 to 69…

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29. Q29 2007 Paper 1

    When 20 g of naphthoic acid ($C_{11}H_8O_2$) is dissolved in 50 g of benzene ($K_f = 1.72$ K kg mol$^{-1}$)…

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