Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Solutions question

2015 · Q81
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Chemistry
  4. /Solutions
  5. /2015 · Q81

Solutions question

2015 · Q81

NEETChemistrySolutionsMCQ+4 / −1
The boiling point of 0.2 mol kg−-−1 solution of X in water is greater than equimolal solution of Y in water. Which one of the following statements is true in this case?
  1. A
    Molecular mass of X is less than the molecular mass of Y.
  2. B
    Y is undergoing dissociation in water while X undergoes no change.
  3. C
    X is undergoing dissociation in water.
  4. D
    Molecular mass of X is greater than the molecular mass of Y.
View written solutionFree

Correct answer: C

Δ\Delta ΔTb = iKbm

Given, (Δ\Delta ΔTb)x > (Δ\Delta ΔTb)y

∴\therefore∴ ixKbm > iyKbm

⇒\Rightarrow⇒ ix > iy

(Kb is same for same solvent)

So, x is undergoing dissociation in water.

PreviousNext

More from Solutions

  • Which of them is not equal to zero for an ideal solution?2015 · MCQ
  • Which one of the following electrolytes has the same value of van't Hoff factor (i) as that of Al2(SO4)3 (if all are 100% ionised)?2015 · MCQ
  • Of the following 0.10 m aqueous solutions, which one will exhibit the largest freezing point depression?2014 · MCQ
  • Which condition is not satisfied by an ideal solution?2013 · MCQ
  • Vapour pressure of chloroform (CHCl3) and dichloromethane (CH2Cl2) at 25oC are 200 mm Hg and 41.5 mm Hg respectively. Vapour pressure of the solution obtained by mixing 25.5 g of CHCl3 and 40 g of CH2Cl2 at the same temperature will be…2012 · MCQ
  • pA and pB are the vapour pressure of pure liquid components, A and B, respectively of an ideal binary solution. If xA represents the mole fraction of component A, the total pressure of the solution will be2012 · MCQ
  • A 0.1 molal aqueous solution of a weak acid is 30% ionized. If Kf for water is 1.86oC/m, the freezing point of the solution will be2011 · MCQ
  • 200 mL of an aqueous solution of a protein contains its 1.26 g. The osmotic pressure of this solution at 300 K is found to be 2.57 × 10−3 bar. The molar mass of protein will be (R = 0.083 L bar mol−1 K−1)2011 · MCQ