Physical and Ch...

Which of the following changes does not show a chemical change?

which of the following is physical changes which are reversible?

Best description of physical changes.

Mass, property stays the same during which of the following changes?

which of the following is a chemical process ?

Brown color of the apple after cutting is-

An example of a chemical change is ______.

Explosion of a cracker is a- 

Magnesium ribbon on burning in air produces:

Which of the following change cannot be reversed ?

which of the following is a physical change-

The process, boiling of water is called-

Ozone layer protects us from harmful rays-

In the tools which are used to dig the soil, the iron blade in these tools fixed to the wooden handle. Which of the following is used during the change?

Iron pipes are coated with…….to protect from the corrosion.