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

Solutions question

2021 · 25 Jul · Shift 2 · Q23
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Solutions
  5. /2021 · 25 Jul · Shift 2 · Q23

Solutions question

2021 · 25 Jul · Shift 2 · Q23

JEE MainChemistrySolutionsNumerical+4 / −1
When 3.00 g of a substance 'X' is dissolved in 100 g of CCl4CCl_4CCl4​, it raises the boiling point by 0.60 K. The molar mass of the substance 'X' is ‾\underline{\hspace{2cm}}​ g mol −-− 1. (Nearest integer). [Given Kb for CCl4CCl_4CCl4​ is 5.0 K kg mol −-− 1]
Numerical answer
PreviousNext

More from Solutions

  • Of the following four aqueous solutions, total number of those solutions whose freezing point is lower than that of 0.10 M C2​H5​OH is ​ (Integer answer) (i) 0.10 M Ba3​(PO4​)2​ (ii) 0.10 M Na2​SO4​ (iii)…2021 · Numerical
  • 83 g of ethylene glycol dissolved in 625 g of water. The freezing point of the solution is ​ K. (Nearest integer) [Use : Molal Freezing point depression constant of water = 1.86 K kg mol − 1] Freezing Point of…2021 · Numerical
  • 224 mL of SO2​(g) at 298 K and 1 atm is passed through 100 mL of 0.1 M NaOH solution. The non-volatile solute produced is dissolved in 36g of water. The lowering of vapour pressure of solution (assuming the solution in dilute) (P (H2​O)o​−…2021 · Numerical
  • When 12.2 g of benzoic acid is dissolved in 100 g of water, the freezing point of solution was found to be − 0.93 ∘ C (Kf(H2​O) = 1.86 K kg mol − 1). The number (n) of benzoic acid molecules associated (assuming 100%…2021 · Numerical
  • 1 kg of 0.75 molal aqueous solution of sucrose can be cooled up to − 4 ∘ C before freezing. The amount of ice (in g) that will be separated out is ​. (Nearest integer) [Given : Kf(H2​O) = 1.86 K kg mol −…2021 · Numerical
  • 40 g of glucose (Molar mass = 180) is mixed with 200 mL of water. The freezing point of solution is ​ K. (Nearest integer) [Given : Kf = 1.86 K kg mol − 1; Density of water = 1.00 g cm − 3; Freezing point of…2021 · Numerical
  • 1.46 g of a biopolymer dissolved in a 100 mL water at 300 K exerted an osmotic pressure of 2.42 × 10 − 3 bar. The molar mass of the biopolymer is ​× 104 g mol − 1. (Round off to the Nearest Integer)…2021 · Numerical
  • In a solvent 50% of an acid HA dimerizes and the rest dissociates. The van't Hoff factor of the acid is ​× 10 − 2. (Round off to the nearest integer)2021 · Numerical