Reaction of $O_{2}$ is faster with $C a$ or $M g$ ?

M g

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C a

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Equally react

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Do not react

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Solution

The correct option is B $C a$
Ionization energy of $C a$ is $590 k J / m o l$ and that of $M g$ is $738 k J / m o l$ . Hence, oxygen reacts faster with Calcium than Magnesium.

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C a

M g

O_{2}

Be and Mg do not react with water. This is because of:

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