1) Which of these is a physical change ? a) Melting of wax b) Burning of candle c) Cooking of rice d) None of these 2) Which of these is a chemical change ? a) Tearing of paper b) Crushing of stones c) Burning of candle d) Melting of ice 3) Which of these changes during a physical change ? a) Chemical property b) Physical property c) Composition d) All of these 4) Which of these necessarily change during a chemical change ? a) Chemical property b) Physical property c) Shape d) Size 5) Which of the following is a chemical change ? a) Twinkling of stars b) Cooking of vegetables c) Cutting of fruits d) Boiling of water 6) A chemical change may involve – a) change in colour only b) change in temperature only c) evolution of gas only d) any or all of the above 7) A man painted his main gate made up of iron, to - a) prevent it from rusting. b) protect it from the sun. c) make it look beautiful. d) make it dust-free. 8) Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates a – a) a physical change that can be reversed. b) the chemical change that can be reversed. c) a physical change that cannot be reversed. d) the chemical change that cannot be reversed. 9) Which of the following statement is incorrect for a chemical reaction ? a) Heat may be given out but never absorbed. b) The sound may be produced. c) A colour change may take place. d) A gas may be evolved. 10) When a candle burns, both physical and chemical changes take place. a) True b) False 11) Iron benches kept in lawns and gardens get____________. It is a _________ change because a new _________ is formed. a) rusted, chemical, substance b) rusted, reversible, system c) greased, physical, chemical d) galvanised, chemical, product 12) Iron and rust are the same substances. a) True  b) False c) Cant say d) irregular change 13) Condensation of steam is not a chemical change. a) True b) False c) Cant say d) Maybe

Physical and chemical changes

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