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Question

What is obtained when a metal oxide of the highly reactive metals react with water?

A
metal carbonate
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B
metal hydroxide
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C
pure metal
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D
They do not react with each other.
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Solution

The correct option is B metal hydroxide
Metal oxide reacts with water to form metal hydroxide along with the evolution of heat energy.
For example: Na2O+H2O2NaOH+heat

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