Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Open MARKS Web Download App
Search any question & find its solution
Question: Answered & Verified by Expert
Assertion (A) Molality of a solution increases with temperature.
Reason (R) Molality expression does not involve any volume term.
ChemistrySolutionsAP EAMCETAP EAMCET 2022 (08 Jul Shift 2)
Options:
  • A Both $A$ and $R$ are correct, $R$ is the correct explanation of $A$.
  • B Both $A$ and $R$ are correct, $R$ is not the correction explanation of $A$.
  • C A is correct, $\mathrm{R}$ is not correct.
  • D A is not correct, $R$ is correct.
Solution:
1655 Upvotes Verified Answer
The correct answer is: A is not correct, $R$ is correct.
Assertion is incorrect while Reason is correct. Molality is defined in terms of the solvents mass, not by its volume, thus temperature does not change the molality of a solution.

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.

Use on iOS or Desktop Download from Google Play