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Hydrogen — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryHydrogen1 Mark
MCQ
Among I-A elements, which element is gas at room temperature?
  • ✓
    Hydrogen
  • B
    Lithium
  • C
    Sodium
  • D
    Potassium
✓

Answer

Correct option: A.
Hydrogen
  1. Hydrogen
Explanation:

At standard temperature and pressure, hydrogen is a colorless, odorless, tasteless, non-toxic, non-metallic, highly combustible diatomic gas. It is highly flammable and forms an explosive mixture with air.

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