Question

Which of the following are physica changes and which are chemical - making a table from wood, burning wood, breaking of a glass object, ripening of a tomato, rustin of iron?

Answer 1

Physical changes:
Making a table from wood
Breaking of a glass object
Ripening of tomato
Chemical changes:
Burning wood
Rusting of iron

Answer 2

Explanation:

In physical changes there is no new product is formed ,only the physical property of the object like shape , size etc changes.

Based on the above definition the physical changes are

(1)Making a table from wood

(2)Breaking of a glass object

(3)Ripening of a tomoto.

In chemical change,a new substance is formed with new chemical properties.

Based on above definition the chemical changes are

(1)Burning of wood.

(2)Rusting of iron.