Physical and Ch...

Which of these facts is responsible for any iron rod long stability?

All of these are physical properties of a substance except-

Incorrect statement for a chemical reaction-

A worker painted main gate of his owner house made up of iron, to

Which of the following changes is a physical change?

Which of the following is not a reversible change ?

Layer of which metal should be apply on iron to prevent it from rusting?

A change in which a substance undergoes changes in its physical properties is called

Best description of physical changes.

Which of the following changes is a chemical change?

All of these are chemical properties of a substance except-

When a candle burns then which change take place-

Stretching of rubber is a -

Stretching of a rubber band results in ___________.

Anaerobic bacteria digest animal waste and produce biogas(Change-A). The biogas is then burnt as fuel(Change-B). The following statements pertain to these changes. Choose the correct one.