Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Which of the following colour changes shown during redox titrations is not correct?
A
oxidises the indicator diphenylamine to produce blue colour showing end point.
B
Iodine formed by oxidation of 
ions gives blue colour with starch showing end point.
ions gives blue colour with starch showing end point.
C
in the form of 
ions gives pink colour showing end point.
D
Thisulphate ions 
give blue colour showing end point.
give blue colour showing end point.
Text Solution
Verified by ExpertsThe correct answer is:
D
Thiosulphate ions do not act as indicator and do not indicate end point by change in colour.
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