Hot concentrated sulphuric acid is a moderately strong oxidizing agent. Which of the following reaction does not show oxidizing behaviour?

C a F_{2} + H_{2} S O_{4} ⟶ C a S O_{4} + 2 H F

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S + 2 H_{2} S O_{4} ⟶ 3 S O_{2} + 2 H_{2} O

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C u + 2 H_{2} S O_{4} ⟶ C u S O_{4} + S O_{2} + 2 H_{2} O

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C + 2 H_{2} S O_{4} ⟶ C O_{2} + 2 S O_{2} + 2 H_{2} O

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Solution

The correct option is A $C a F_{2} + H_{2} S O_{4} ⟶ C a S O_{4} + 2 H F$
$+ 2 C a F_{2} + H_{2} S O_{4} ⟶ + 2 C a S O_{4} + 2 H F$
Above reaction is not a redox reaction as the oxidation number of elements remains unchanged, whereas in all the other option $H_{2} S O_{4}$ acts as oxidising agent.
Hence, option (d) is correct answer.

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Similar questions

Q. Hot conc.

H_{2} S O_{4}

acts as moderately strong oxidizing agent. It oxidizes both metals and non-metals. Which of the following elements is oxidized by conc.

H_{2} S O_{4}

into two gaseous products?

Q. Assertion :

H_{2} S O_{4}

is a strong oxidizing agent. Reason: Concentrated

H_{2} S O_{4}

oxidises sulphide ions to sulphur trioxide.

(a) Which property of sulphuric acid accounts for its use as a dehydrating agent ?

(b) Concentrated sulphuric acid is both an oxidizing agent and a non-volatile acid. Write on equation each to illustrate the above mentioned properties of sulphuric acid.

Q. Which of the following does not use concentrated sulphuric acid as a drying agent during its manufacture?

Which of the following reactions shows nitric acid as an oxidizing agent?

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Hot concentrated sulphuric acid is a moderately strong oxidizing agent. Which of the following reaction does not show oxidizing behaviour?

The correct option is A CaF2+H2SO4⟶CaSO4+2HF+2CaF2+H2SO4⟶+2CaSO4+2HF Above reaction is not a redox reaction as the oxidation number of elements remains unchanged, whereas in all the other option H2SO4 acts as oxidising agent. Hence, option (d) is correct answer.