Changes around us

Which of these is a reversible Change?

• Melting of wax

• Milk turning into curd

• Burning of wax

• Rusting of iron

Chemical changes are

• Always reversible

• Mostly reversible

• Always irreversible

• Mostly irreversible

Growth in plants and animals is

• Physical change

• Chemical change

• Neither physical nor chemical change since it is a life process

• Either a physical change or a chemical change depending on how much the growth is

Cooking is

• Physical change

• Chemical change

Which of these is a physical and irreversible change

• Evaporation of water

• Breaking of a glass tumbler

• Burning of paper

• Lighting of an electric bulb

Dissolving sugar in water is a

• Chemical change

• Physical change

Changing milk into curd

• Reversible

• Irreversible

Melting boiling evaporation and condensation are

• Physical change

• Chemical change

Change of state is

• An irreversible change

• Reversible Change

New substances With different molecules get formed in a physical change

• False

• True