Some Basic Concepts of Chemistry - Result Question 81

####19. The number of moles of KMnO4 that will be needed to react with one mole of sulphite ion in acidic solution is

(a) 25

(b) 35

(c) 45

(d) 1

Show Answer

Solution:

  1. Molarity = Moles of solute  Volume of solution (L) 

Moles of urea =12060=2

Weight of solution = Weight of solvent + Weight of solute

=1000+120=1120g  Volume =1120g1.15g/mL×11000mL/L=0.973L  Molarity =2.0000.973=2.05M



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक