Answer the following questions in detail.
2.Metals react with water and release hydrogen gas. Explain why non-metals do not release hydrogen gas when reacted with water.
Answers
Answer:
Metals on reacting with water form metal oxides or metal hydroxides and release H 2 gas. Non-metals cannot give electrons to hydrogen in water to be released as H 2 gas. Non-metals have no reaction with water. Reaction with O2 : Metals react with oxygen to form basic oxides.Zn and Al form amphoteric oxides which show the properties of both acidic and basic oxides.Mostly, metal oxides are insoluble in water. Some of them dissolve to form alkali. Non-metals react with oxygen to form oxides
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To release hydrogen gas from water,hydrogen needs electrons.Non-metals cannot donate electrons to free hydrogen ions and form gases.
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