MHT CET · Chemistry · Redox Reactions

Identify correct statement for following reaction.
\(3 \mathrm{Br}_2+6 \mathrm{CO}_3{ }^{2-}+3 \mathrm{H}_2 \mathrm{O} \rightarrow 5 \mathrm{Br}^{-}+\mathrm{BrO}_3{ }^{-}\) \(+~6 \mathrm{HCO}_3^{-}\)

A Bromine is neither reduced nor oxidised
B Bromine is oxidised and carbonate is reduced
C Bromine is reduced and water is oxidised
D Bromine is both reduced and oxidised

Verified Solution

Answer & Solution

Correct Answer

(D) Bromine is both reduced and oxidised

Step-by-step Solution

Detailed explanation

\(\mathrm{Br}_2\) is undergoing oxidation as well as reduction.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Explore more questions on app

From MHT CET

Explore more questions on app

	Column I		Column II
i.	American	a.	Langshan
ii.	Asiatic	b.	Plymouth Rock
iii.	Mediterranean	c.	Minorca
iv.	English	d.	Australorp

Identify correct statement for following reaction.\(3 \mathrm{Br}_2+6 \mathrm{CO}_3{ }^{2-}+3 \mathrm{H}_2 \mathrm{O} \rightarrow 5 \mathrm{Br}^{-}+\mathrm{BrO}_3{ }^{-}\) \(+~6 \mathrm{HCO}_3^{-}\)

Step-by-step Solution

Identify correct statement for following reaction.
\(3 \mathrm{Br}_2+6 \mathrm{CO}_3{ }^{2-}+3 \mathrm{H}_2 \mathrm{O} \rightarrow 5 \mathrm{Br}^{-}+\mathrm{BrO}_3{ }^{-}\) \(+~6 \mathrm{HCO}_3^{-}\)