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Haemoglobin is a complex of .chlorophyll...

Haemoglobin is a complex of_______ .chlorophyll is a complex of_______ and vitamin `B_(12)` is a complex of_________ .

A

`Fe`, `Co`, `Mg`

B

`Co`, `Mg`, `Fe`

C

`Mg`, `Fe`, `Co`

D

`Fe`, `Mg`, `Co`

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AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Objective type Questions (One option is correct)
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  7. Which one of the following is used as an acidic flux in metallurgy ?

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  8. In the metallurgy of iron, the slag is

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