Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Solutions question

2022 · 29 Jun · Shift 2 · Q16
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Solutions
  5. /2022 · 29 Jun · Shift 2 · Q16

Solutions question

2022 · 29 Jun · Shift 2 · Q16

JEE MainChemistrySolutionsNumerical+4 / −1
Elevation in boiling point for 1.5 molal solution of glucose in water is 4 K. The depression in freezing point for 4.5 molal solution of glucose in water is 4 K. The ratio of molal elevation constant to molal depression constant (Kb/Kf) is ‾\underline{\hspace{2cm}}​.
Numerical answer
PreviousNext

More from Solutions

  • For a solution of the gases A, B, C and D in water at 298 K, the values of Henry's law constant (KH) are 30.40, 2.34, 1.56 × 10 − 5 and 0.513 k bar respectively. In the given graph, the lines marked as 'p' and 's' correspond… Includes diagram2022 · MCQ
  • AB2​ is 10% dissociated in water to A2+ and B −. The boiling point of a 10.0 molal aqueous solution of AB2​ is ​∘ C. (Round off to the Nearest Integer). [Given : Molal elevation constant of water…2021 · Numerical
  • At 363 K, the vapour pressure of A is 21 kPa and that of B is 18 kPa. One mole of A and 2 moles of B are mixed. Assuming that this solution is ideal, the vapour pressure of the mixture is ​ kPa. (Round off to the…2021 · Numerical
  • The oxygen dissolved in water exerts a partial pressure of 20 kPa in the vapour above water. The molar solubility of oxygen in water is ​× 10 − 5 mol dm − 3. (Round off to the Nearest Integer). [Given :…2021 · Numerical
  • A 1 molal K4​Fe(CN)6​ solution has a degree of dissociation of 0.4. Its boiling point is equal to that of another solution which contains 18.1 weight percent of a non electrolytic solute A. The molar mass of A is ​…2021 · Numerical
  • 2 molal solution of a weak acid HA has a freezing point of 3.885 ∘ C. The degree of dissociation of this acid is ​× 10 − 3. (Round off to the Nearest Integer). [Given : Molal depression constant of…2021 · Numerical
  • A solute A dimerizes in water. The boiling point of a 2 molal solution of A is 100.52 ∘ C. The percentage association of A is ​. (Round off to the Nearest Integer). [Use : Kb for water = 0.52 K kg mol − 1…2021 · Numerical
  • At 20 ∘ C, the vapour pressure of benzene is 70 torr and that of methyl benzene is 20 torr. The mole fraction of benzene in the vapour phase at 20 ∘ above an equimolar mixture of benzene and methyl benzene is ​…2021 · Numerical