Which subtance cannot be reduced by H(2)...

Which subtance cannot be reduced by `H_(2)O_(2)`

A

`KMnO_(4) // H_(2)SO_(4)`

B

`K_(2)Cr_(2)o_(7) // H_(2)SO_(4)`

C

`Ag_(2)O`

D

`Fe^(3+)`

Text Solution

Verified by Experts

The correct Answer is:

D

`Fe^(+3)` cannot be reduced by `H_(2)O_(2)` while all other get reduced.

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Which substance cannot be reduced by H_(2)O_(2) :

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Knowledge Check

Which substance cannot be reduced by H_(2)O_(2)

A

`KMnO_(4)//H_(2)SO_(4)`

B

`K_(2)Cr_(2)O_(7)//H_(2)SO_(4)`

C

`Ag_(2)O`

D

`Fe^(3+)`

Which oxide cannot be reduced by H_2 ?

A

`Al_(2)O_(3)`

B

`CuO`

C

`ZnO`

D

All of these

Out of the oxides given below, which of them cannot be reduced by H_(2) I (Al_(2)O_(3)) ,II (CuO), (III)(ZnO)

A

only I

B

I and II

C

I,II, and III

D

III and II.

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