i. Iron and rust are the same substance. ii. Iron pipes coated with zinc do not get rusted easily. iii. Formation of manure

Question

State whether the following statement are True or False. Correct and rewrite the false statement:

i. Iron and rust are the same substance.

ii. Iron pipes coated with zinc do not get rusted easily.

iii. Formation of manure from leaves is a physical change.

iv. Cutting a log of wood into pieces is a chemical change.

v. Digestion of food is a chemical change.

vi. Melting of wax is a chemical change.

vii. Dissolving sugar in water is physical change.

viii. Changes in which new substances are formed are called physical changes.

ix. Breaking down of larger food particles into smaller particles is a chemical change.

x. Setting of curd is a physical change.

Answer 1

i. False, Rust is oxide of iron.

ii. True

iii. False, it is a chemical change.

iv. False, it is a physical change.

v. True

vi. False, it is a physical change.

vii. True

viii. False, they are called chemical change.

ix. False, it is a chemical change.

x. False, it is a chemical change.