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प्रश्न
Complete the reaction mentioning all the products formed:
\[\ce{Cr2O^{2-}7 + 3H2S + 8H^+ ->}\]
उत्तर
\[\ce{Cr2O^{2-}7 + 3H2S + 8H^+ -> 2Cr^{3+} + 7H2O + 3S}\]
Dichromate oxidises hydrogen sulphide to sulphur in an acidic medium.
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संबंधित प्रश्न
Complete the following equations:
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A transition metal exhibits the highest oxidation state in oxides and fluorides.
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When orange solution containing \[\ce{Cr2O^{2-}7}\] ion is treated with an alkali, a yellow solution is formed and when \[\ce{H^+}\] ions are added to yellow solution, an orange solution is obtained. Explain why does this happen?
Why \[\ce{HCl}\] should not be used for potassium permanganate titrations?
In the two tetrahedral structures of dichromate ion, ______.
Complete the reaction mentioning all the products formed:
\[\ce{2KMnO4 ->[\Delta]}\]
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