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Chemical Reactions and Equations — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceChemical Reactions and Equations1 Mark
MCQ
Which of the following is not a physical change?
  • A
    Boiling of water to give water vapour.
  • B
    Melting of ice to give liquid water.
  • C
    Dissolution of salt in water.
  • D
    Combustion of Liquefied Petroleum Gas (LPG).
✓

Answer

  1. Combustion of Liquefied Petroleum Gas (LPG).

Explanation:

Combustion of Liquefied Petroleum Gas (LPG) this is not a physical change, it is a chemical change as once it is burnt, the smoke particle cannot be changed into Liquefied Petroleum Gas again.

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