Burning of any substance is a chemical change because it results in the formation of new products and the change is also irreversible. So, option D is correct.
Boiling of water, melting of ice and dissolving of salt in water are all physical changes. There are no new substances formed and these changes are reversible as well.
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Similar Questions
Q1
Question 1
Which of the following is not a physical change?
(a) Boiling of water to give water vapour (b) Melting of ice to give water (c) Dissolution of salt in water (d) Combustion of Liquefied Petroleum Gas (LPG)
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Q2
Which of the following is/are constituent(s) of Liquefied Petroleum Gas (LPG)?
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Q3
Which among the following are physical or chemical changes?
(a) Evaporation of petrol (b) Burning of liquefied Petroleum Gas (LPG) (c) Heating of an iron rod to red hot. (d) Curdling of milk (e) Sublimation of solid ammonium chloride
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Q4
Question 30 Which among the following are physical or chemical changes?
(a) Evaporation of petrol.
(b) Burning of Liquefied Petroleum Gas (LPG).
(c) Heating of an iron rod to red hot.
(d) Curdling of milk.
(e) Sublimation of solid ammonium chloride.
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Q5
What is the composition of liquefied petroleum gas (LPG) ?