Question

test of chemical using pH paper litmus test​

Answer 1

then what r u trying to ask....can u pls explain

Answer 2

HEY MATE HERE IS YOUR ANSWER:-

To perform the test, simple place a drop of liquid sample on a small strip of paper or dip a piece of litmus paper in a small specimen of the sample. ... Red litmus paper can indicate alkalinity with a color change to blue. In general, litmus paper is red below pH of 4.5 and blue above a pH of 8.3.

HOPE IT HELP YOU.