Moderate

Product of combustion of H2 is:

Correct answer: B. Water

  • A. Hydrogen sulfide
  • B. Water
  • C. HCl
  • D. None of these

Explanation

Hydrogen (H₂) reacts with oxygen during combustion to form H₂O. The reaction is highly exothermic, releasing a lot of energy. No other products like HCl or H₂S are formed in this combustion.

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About s-Block and p-Block Elements

The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.

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