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Hydrogen is evolved the action of cold d...

Hydrogen is evolved the action of cold dilute `HNO_(3)` on `:`

A

`Fe`

B

`Mn`

C

`Cu`

D

`Al`

Text Solution

Verified by Experts

The correct Answer is:
b
`Mn+2HNO_(3)(dil.) rarr Mn (NO_(3))_(2)+H_(2)`
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A2Z-HYDROGEN-Section D - Chapter End Test
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  9. Permanent hardness due to Mg^(2+) ions is best removed by

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  11. Hardness producing salt, whose solubility in water decreases with rise...

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  13. Water obtained by purification with organic ion exchange resins is

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  14. Hydrogen can be fused to form helium at

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  17. Hardness of water is due to presence of salts of

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  19. A dilute solution of H(2)O(2) is labelled as 20 volume . Its percentag...

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  20. The volume of oxygen liberated from 0.68g of H(2)O(2) is

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