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
0.01MKMnO4 solution was added to 20.0 mL of 0.05M Mohr 's salt solution through a burette. The initial reading of 50 mL burette is zero. The volume of KMnO4 solution left in the burette after the end point is....... mL. (nearest integer)
ChemistryRedox ReactionsJEE MainJEE Main 2022 (28 Jun Shift 2)
Solution:
2284 Upvotes Verified Answer
The correct answer is: 30

Fe2++MnO4-Fe3++Mn2+

vf=1  vf=5

vf=Valency factor

Milli equivalents of mohr's salt = milli equivalents of KMnO4

1×0.05×20=5 0.01×Vml

Vml =20ml

Volume of KMnO4 left = 50-20=30ml

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.