Why is h2so4 added to potassium permanganate and mohr salt titration
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Answer:
due to see evolution of gas hydrogen
Explanation:
when h2so4 is added to potassium ame hydrogennis evolved
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H2SO4 needs to be added to the Mohr's salt crystals during the preparation of its standard solution. Another reason is also to prevent the oxidation of Fe2+ ions of Mohr's salt to Fe3+ ions. As this titration is generally carried out with KMnO4 or K2Cr2O7 and both are good oxidising agents.
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