Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
An aqueous solution is 1.00 molal in KI. Which change will cause the vapour pressure of the solution to increase?
ChemistrySolutionsNEET
Options:
  • A addition of water
  • B addition of NaCl
  • C addition of Na2SO4
  • D addition of 100 molal KI
Solution:
2986 Upvotes Verified Answer
The correct answer is: addition of water
As on increasing water amount, the mole fraction of solvent (H2O) increases in the solution so vapour pressure of solution also increases (Raoult’s law)

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.