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Question

Which is the most preferred metal in laboratory for preparation of hydrogen by metal-acid reaction:-



A

Magnesium 

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B

Sodium

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C

Zinc

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D

Calcium

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Solution

The correct option is C

Zinc


Zinc (Zn) is the most preferred metal in the laboratory because metals like potassium (K) and sodium (Na) react violently with acid because of their high reactivity. Also, unlike zinc, metals like magnesium (Mg) and calcium (Ca) are expensive. Thus, overall, zinc is the most preferred metal in the laboratory to prepare hydrogen by means of metals reacting with acids.


Chemistry

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