During titration, H2SO4 is preferably used over HCI and HNO3 to make the solution acidic because

H 2 SO 4 does not react with KMnO 4 or the reducing agent used

H 2 SO 4 does not react with KMnO 4 or the reducing agent used

H 2 SO 4 is a strong oxidising agent and it reacts with KMnO 4 during titration

Some KMnO 4 is consumed during the reaction with H 2 SO 4

H 2 SO 4 does not react with KMnO 4 or the reducing agent used

H 2 SO 4 can turn colourless KMnO 4 to pink at the end point

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During titration, H₂SO₄ is preferably used over HCI and HNO₃ to make the solution acidic because

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H₂SO₄is a strong oxidising agent and it reacts with KMnO₄ during titration

Some KMnO₄ is consumed during the reaction with H₂SO₄

H₂SO₄ does not react with KMnO₄ or the reducing agent used

H₂SO₄ can turn colourless KMnO₄ to pink at the end point

answer is C.

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To avoid oxidation of any chemical reaction.

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