A metal is present in plants, bones, egg shells and sea shells. It is also used to remove oxygen from molten steel. The metal is

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Solution

The correct option is B
Ca

Ca is present in plants, bones, egg shells and sea shells. It is also used as scavenger of oxygen from molten steel.
2Ca + $O_{2} \to$ 2 CaO.

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A metal is present in plants, bones, egg shells and sea shells. It is also used to remove oxygen from molten steel. The metal is

The correct option is B Ca Ca is present in plants, bones, egg shells and sea shells. It is also used as scavenger of oxygen from molten steel. 2Ca + O2→ 2 CaO.

The correct option is B
Ca

Ca is present in plants, bones, egg shells and sea shells. It is also used as scavenger of oxygen from molten steel.
2Ca + $O_{2} \to$ 2 CaO.