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H2O2 is used as bleaching reagent becaus...

`H_2O_2` is used as bleaching reagent because on dissociation it givens oxygen `(H_2 O_2 rarr H_2 O +1/2 O_2)`. Chachi `420` used `H_2 O_2` solution to bleach her hair and she required `2.24 LO_2` gas at 1 atm and `273K`. She has a `H_2 O_2` solution labelled as `5.6V` then What volume of such solution must she required to bleach har hair ?

A

200mL

B

300mL

C

400mL

D

500mL

Text Solution

Verified by Experts

The correct Answer is:
C
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NARENDRA AWASTHI-STOICHIOMETRY-Level 1 (Q.151 To Q.180)
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  2. A solution contaning 2.7 xx 10^(-3) mol of A^(2+) "ion required" 1.6 x...

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  3. H2O2 is used as bleaching reagent because on dissociation it givens ox...

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  4. 1.25g of a solid dibasic acid is completely neutralised by 25mL of 0.2...

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  5. 10mL of an N-HCI, 20mL of N/2 H2 SO4 and 30 mL of N/3 HNO3 are mixed ...

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  6. 0.45 g of acid (mol. Wt.=90) was exactly neutralized by 20 ml of 0.5(M...

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  7. A sample of 28 mL of H(2) O(2) (aq) solution required 10 mL of 0.1 M K...

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  8. Which species are oxidised and reduced in the reaction? FeC(2)O(4)+...

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  9. A sample of 1.0g of solid Fe(2)O(3) of 80% purity is dissolved in a mo...

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  10. KMnO4 reacts with oxalic acid according to the equation 2MnO4 + 5C2 O4...

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  11. Ratio of moles of Fe (II) oxidised by equal volumes of equimolar KMnO4...

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  12. The mass of a mixture containing HCI and H2 SO4 is 0.1g On treatment w...

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  13. A solution of Na2S2O3 is standardized iodometrically against 0.167g of...

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  14. 0.80g is impure (NH4)SO4) was boiled with 100mL of 0.2N NaOH solution ...

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  15. The NH3 evolved due to complete conversion of N from 1.12g sample of p...

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  16. Find out % of oxalate ion in a given sample of an alkali metal oxalate...

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  17. 320mg of sample of magnesium having a coating of its oxide required 20...

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  18. The concentration of bivalent lead ions in sample of polluted water ...

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  19. What volume of HNO3 (sq.gravity 1.05 gmL^(-1) containing 12.6(w/W) of ...

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  20. 1 mole of equimolar mixture of ferric oxalate and ferrous oxalate requ...

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