Which among the following is a physical change?
Burning of magnesium ribbon
Conversion of an ice cube to water
Rusting of iron
Cooking an egg
Which of the following are physical changes and which are chemical changes?
(a) Burning of a magnesium wire
(b) Freezing of water
(c) Rusting of iron
(d) Glowing of an electric bulb
Which of the following are physical changes?
a) Rusting of an iron sheet
b) Cutting of an iron rod
c) Melting of ghee
d) Breaking water into hydrogen and oxygen
e) Diluting an acid solution
Write “P” for physical change and “C” for chemical change in the following:
(a) Dissolving salt in water
(b) Freezing of water.
(c) Rusting of iron.
(d) Frying an egg.
(e) Heating ice to form water.
(f) Digestion of food.
Question 1
Which of the following is a physical change? (a) Rusting of iron (b) Combustion of magnesium ribbon (c) Burning of candle (d) Melting of wax
identify the physical changes of the following-A] MELTING OF ICE
B]RUSTING OF IRON
C]SUBLIMATION OF IODINE
D]BURNING OF MAGNESIUM IN AIR