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Which of the following chemical reactions depicts the oxidising behaviour of H2SO4?

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asked Mar 30, 2018 in Chemistry by paayal (26,720 points) ● 4 ● 6 ● 11

Which of the following chemical reactions depicts the oxidising behaviour of H2SO4?
(a) 2HI + H2SO4 → I2 + SO2 + 2H2O
(b) Ca(OH)2 + H2SO4 → CaSO4 + 2H2O
(c) NaCl + H2SO4 → NaHSO4 + HCl
(d) 2PCl5 + H2SO4 → 2POCl3 + 2HCl + SO2Cl2 .

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answered Mar 30, 2018 by sanjaydas (61,430 points) ● 5 ● 7 ● 7
selected Apr 1, 2018 by Vikash Kumar
 
Best answer

In this reaction oxidation number of S decreases by two, thus this is a reduction reaction and H2SO4 behaves as oxidising agent.

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asked Mar 30, 2018 in Chemistry by paayal (26,720 points)

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