Question

Fill in the Blanks:
1. Conversion of liquid to vapour is a ………….. change.
2. Those changes in which physical properties of substances changes are called ……………… changes.
3. The changes taking place around us are generally of ……….. types.
4. The substances cannot get back into their original form in a …………… change.

Answer 1

Answer:

(1) Gas. (2) Chemical Properties of Substance (4) Impure Substance

Answer 2

The answers to the questions are as follows:

1. Conversion of liquid to vapor is a Vaporization/Boiling change.

2. Those changes in which physical properties of substances changes are called physical changes.

3. The changes taking place around us are generally of chemical types.

4. The substances cannot get back into their original form in a non-reversible change.