Some Basic Concepts of Chemistry - Result Question 16

####16. The number of moles of KMnO4 reduced by one mole of KI in alkaline medium is:

[2005]

(a) one

(b) two

(c) five

(d) one fifth

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Solution:

  1. (b) In weak alkaline medium, the equation is:

2MnSO4+H2O+I2MnO2+IO4+2OH

Hence, one mole of KI reduce, 2 moles of KMnO4.



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