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Physical and Chemical Changes — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7SciencePhysical and Chemical Changes1 Mark
MCQ
Explosion of a fire work $($such as a cracker$):$
  • ✓
    Chemical
  • B
    Physical
  • C
    Both $A$ and $B$ possible according to condition
  • D
    Can not be predicted
✓

Answer

Correct option: A.
Chemical
An explosion of a cracker is a chemical change because the explosive reactants are transformed into gaseous products along with heat, light, and sound which cannot be reversed.

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