Reaction (A) `S^(-2)+4H_(2)O_(2)rarrSO_(4)^(2-)+4H_(2)O` (B) `Cl_(2)+H_(2)O_(2)rarr2HCl+O_(2)` The true statement regarding the above reactions is :A. `H_(2)O_(2)` acts as reductant in both the reactions.B. `H_(2)O_(2)` acts as oxidant in reaction (A) and reductant in reaction (B).C. `H_(2)O_(2)` acts as an oxidant in both the reactions.D. `H_(2)O_(2)` acts as reductant in reaction (A) and oxidant in reactin (B)

Reaction (A) `S^(-2)+4H_(2)O_(2)rarrSO_(4)^(2-)+4H_(2)O` (B) `Cl_(2)+H

1.	Reaction (A) `S^(-2)+4H_(2)O_(2)rarrSO_(4)^(2-)+4H_(2)O` (B) `Cl_(2)+H_(2)O_(2)rarr2HCl+O_(2)` The true statement regarding the above reactions is :A. `H_(2)O_(2)` acts as reductant in both the reactions.B. `H_(2)O_(2)` acts as oxidant in reaction (A) and reductant in reaction (B).C. `H_(2)O_(2)` acts as an oxidant in both the reactions.D. `H_(2)O_(2)` acts as reductant in reaction (A) and oxidant in reactin (B)
Answer» Correct Answer - B

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`0.80 g` of sample of impure potassium dichromate was dissolved in water and made up to `500 mL` solution. `25 mL` of this solution treated with excess of `KI` in acidic medium and `I_(2)` liberated required `24 mL` of a sodium thiosulphate solution. `30 mL` of this sodium thiosulphate solution required `15 mL` of `N//20` solution of pure potassium dichromate. What was the percentage of `K_(2)Cr_(2)O_(7)` in given sample?A. `73.5%`B. `75.3%`C. `36.75%`D. none of these
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The unbalanced equation for the reaction of `P_(4)S_(3)` with nitrate in aqueous acidic medium is given below : `P_(4)S_(3)+NO_(3)^(-)rarrH_(3)PO_(4)+SO_(4)^(2-)+NO` the number of moles of water reuired per mole of `P_(4)S_(3)` is :A. 18B. `(8)/(3)`C. 8D. 28
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