Chemistry - Redox Reactions Question with Solution | TestHub
ChemistryRedox ReactionsDouble IndicatorEasy2 minQB
ChemistryEasysingle choice
Passage / Comprehension
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What will be the titre reading if only phenolphthalein is used as an indicator?
Options:
Answer:
B
Solution:
mmol: = 500/40 = 12.5, = 500/106 = 4.72, = 500/84 = 5.95. Phenolphthalein neutralizes all plus half the carbonate (to ); does not react. mmol = 12.5 + 4.72 = 17.22, so titre = 17.2 ml of 1 N , matching (b).
Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Double Indicator
⏱ 2mℹ️ Source: QB
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