Cobalt #027

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Quiz on Cobalt

1 / 5

Cobalt is used only for blue pigment

2 / 5

Cobalt is

3 / 5

In which of the following Cobalt is now not used

4 / 5

In which of the following vitamins, Cobalt is present?

5 / 5

Cobalt is mostly extracted as a free element from nature

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