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Question

Which of the following reaction is correct when water reacts with metal?


A
2K+2H2O2KOH+H2
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B
2Na+2H2O2NaOH+H2
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C
Ca+2H2OCa(OH)2+H2
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D
All of the above
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Solution

The correct option is D All of the above
Potassium reacts vigorously with cold water to form potassium hydroxide and hydrogen gas. This reaction is very vigorous and gives out lilac colored flames. With Sodium cold water to form sodium hydroxide and hydrogen gas. When cold water reacts with calcium produce milky turbid solution called Calcium hydroxide.

Chemistry

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