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Question
Which of the following metals is used in the laboratory preparation of hydrogen gas?
Which of the following metals is used in the laboratory preparation of hydrogen gas?
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Solution
The correct option is B Zinc
Metals like sodium, potassium and calcium react with water to give hydrogen gas but this reaction is highly exothermic. The only suitable metal to release hydrogen gas with moderate levels of energy is zinc. Hence only zinc is used in the laboratory preparation of hydrogen gas.
Zinc
Metals like sodium, potassium and calcium react with water to give hydrogen gas but this reaction is highly exothermic. The only suitable metal to release hydrogen gas with moderate levels of energy is zinc. Hence only zinc is used in the laboratory preparation of hydrogen gas.
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