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Iron articles get rusted on weathering d...

Iron articles get rusted on weathering due to the formation of

A

FeO

B

`Fe_(2)O_(3)`

C

`Fe_(3)O_(4)`

D

`Fe(OH)_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
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RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -National Standard Examination In chemistry
  1. The aqueous solution of transition metal salt changes colour from pink...

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  2. Iron articles get rusted on weathering due to the formation of

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  3. Chromium has the lowest oxidation state in

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  4. Paramagnesim is not exhibited by:

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  5. Articles made of copper or bronze slowly tarnish in air and turn green...

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  6. Which of the following ions contains minimum number of unpaired electr...

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  7. Chromium has the lowest oxidation state in

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  8. Which of the following statements concerning transition elements is fa...

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  9. The magnetic moment of MnSO(4).4H(2)O is:

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  10. Which two of the following reactions are possible? (i) FeCl(3)+SnCl(...

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  11. Europium forms stable Eu^(2+) ions because

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  12. Which of these ions is expected to be colored in aqeous solution? [...

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  13. How many unpaired electrons ae in a Fe^(2+) ion in the ground state?

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  14. Which of the following transition metal ions is colourless ?

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  15. The compound with the lowest oxidation state is:

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  16. The aqua ion which will be almost colorless is-

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  17. MnO(4)^(-) is of intense pink colour, though Mn is in (+7) oxidation s...

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  18. What happens when (write balanced chemical equations only) Dry chlor...

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  19. Highest magnetic moments, shown by the transition metal ion with the ...

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  20. The compound in which Mn has oxidation state of +3 is

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