111k views
1 vote
6. Universal indicator paper is used to tell whether chemicals are acid or alkali.

1 Answer

5 votes
A universal indicator can be in paper form or present in a form of a solution.
Paper form: It is a strip of coloured paper which changes colour to red if the solution is acidic and to blue, if the solution is basic.
User Bruce Nielson
by
8.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.