Question:
Which of the following metals are normally used in the preparation of dihydrogen in the laboratory?
Which of the following metals are normally used in the preparation of dihydrogen in the laboratory?
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Zn + dilute HCl is standard lab method for hydrogen preparation.
Updated On: Apr 24, 2026
- Na and Ca
- Ca and Ba
- Fe and Na
- Zn and Mg
- Na and Ba
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The Correct Option is D
Solution and Explanation
Concept:
• Metals reacting with acids produce hydrogen gas
Step 1: Check metals
Zn and Mg react safely with dilute acids
Step 2: Reject others
Na, Ca, Ba → too reactive (dangerous) Final Conclusion:
Option (D)
• Metals reacting with acids produce hydrogen gas
Step 1: Check metals
Zn and Mg react safely with dilute acids
Step 2: Reject others
Na, Ca, Ba → too reactive (dangerous) Final Conclusion:
Option (D)
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