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haemoglobin is a complex of...

haemoglobin is a complex of

A

`Fe^(3+)`

B

`Fe^(2+)`

C

`Fe^(4+)`

D

`Cu^(2+)`

Text Solution

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The correct Answer is:
B
Factual.
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ERRORLESS-THE d-AND f- BLOCK ELEMENTS -NCERT BASED QUESTIONS (Compounds of Transitional Elements)
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  6. On heating K4[Fe(CN)6] with conc. H2SO4 gives the gas

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  7. How H(2)S is liberated in laboratory

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  8. Iron is dropped in dil. HNO(3) , it gives

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  9. Steel becomes soft and pliable by

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  12. If steel is heated to a temperature well below red hot and is then coo...

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  14. Steel contains

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  15. The most convenient method to protect the bottom of the ship made of i...

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  16. When SCN^(-) is added to an aqueous solution containing Fe(NO(3))(3), ...

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  17. The protection of steel by chrome plating is due to

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  18. KI and CuSO4 solution when mixed give .

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  19. Copper displaces Which of the metal from their salt solutions?

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  20. From a solution of CuSO4 the metal used to recover copper is

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