AP EAMCET · Chemistry · Redox Reactions
One litre of \(0.15 \mathrm{M} \mathrm{Na}_2 \mathrm{SO}_3\) aqueous solution is mixed with \(500 \mathrm{~mL}\) of \(0.2 \mathrm{M} \mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) aqueous solution in acid medium. What is the number of moles of \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) remaining in the solution after the reaction?
- A 0.1
- B 0.0125
- C 0.025
- D 0.05
Answer & Solution
Correct Answer
(D) 0.05
Step-by-step Solution
Detailed explanation
When \(0.15 \mathrm{M} \mathrm{Na}_2 \mathrm{CO}_3\) (1 L) mixed with \(0.2 \mathrm{M}\) \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) (5L) than total molarity \((M)\).…
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