Question

ph paper is prepared by ​

Answer 1

Answer:

litmus paper is made from wood cellulose.

How to find that the substance is acid, Base or neutral :

Take a litmus paper and deep it into substance.. If it is acidic in nature then the blue litmus paper changes its colour and turn into red..

Take a litmus paper and deep it into substance..

If it is Base in nature then the red litmus paper changes its colour and turn into blue..

Take a litmus paper which is salt or any substance which is not acidic in nature nor Base in nature.. Deep it into a substance and you will see that the colour remain same

Answer 2

Answer:

ph paper is prepared by variety of indicators