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Assertion (A): A mixture of ammonia and ...

Assertion (A): A mixture of ammonia and hydrogen peroxide can bleach the human hair to golden colour.
Reason (R): Ammonia solution is basic in nature

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true and R is not the correct explanation of A

C

A is true but R is false

D

A is false but R is true.

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-HYDROGEN AND ITS COMPOUNDS-OBJECTIVE EXERCISE - 3
  1. The weight of H2O2 present in 70 ml of 6% (w/v) H2O2 solution is

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  2. 100cm^3 of a given sample of H2O2 gives 1000cm^3 of O2 at S.T.P. T...

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  3. 10 ml of H2O2 solution on decomposition liberated 200ml of O2 at ST...

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  4. Which one of the following reactions represents the oxidizing property...

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  5. The pH of a solution of H2O2 is 6.0. Some chlorine gas is bubbled int...

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  6. The volume strength of solution formed by mixing 1 lit 0.5 M H2O2 wit...

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  7. Number of moles of O2 gas evolved by the decomposition of 1 lit of 1N...

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  8. The reaction between H2O2 and KMnO4 is 2KMnO4 + 3H2SO4 + 5H2O2 to K2...

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  9. 20 ml H2O2 is added to excess of KI in acidic medium. The liberated I...

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  10. In which of the following conversion brought about by H2O2 , maximum n...

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  11. What is the volume strength of 100 ml of aqueous H2O2 solution contain...

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  12. When H2O2 is treated with a solution of titanium dioxide in conc. H2S...

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  13. Equimolar mixture of ammonium sulphate and sulphuric acid is electroly...

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  14. Assertion (A): A mixture of ammonia and hydrogen peroxide can bleach t...

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  15. The reagent(s) used for softening the temporary hardness of water are ...

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  16. Excess of ozone is passed through 100 ml of 44.8 "vol" of H2O2 aqueou...

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  17. 17 gm of H2O2 is present in 100 ml of an aqueous solution. When 10 ml...

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  18. When 10 ml of 5M H2O2 aqueous solution is decomposed at the S.T.P. vo...

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  19. The weight of H2O2 present in 80 ml 10V H2O2 solution is

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  20. Match the following

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