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Changes Around Us — Science STD 6 — Question

CBSE BoardEnglish MediumSTD 6ScienceChanges Around Us1 Mark
MCQ
Nitrogen reacts with hydrogen under high temperature and pressure and forms ammonia. Which type of change is undergone in the given example?
  • ✓
    A chemical change.
  • B
    A physical change.
  • C
    An exothermic reaction.
  • D
    A natural change.
✓

Answer

Correct option: A.
A chemical change.
It has undergone a chemical change. A new substance (ammonia gas) having different properties is formed. It is an endothermic change requiring high temperature and pressure.

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