pH indicator is a chemical compound that is added in small amounts to a solution so that the pH (acidity or alkalinity) of the solution can be determined easily. pH indicators are usually weak acids or bases themselves. They detect the presence of hydronium ions (H3O+) or hydrogen ions (H+).
red
Mosambi juice is typically acidic, so it would turn red on pH paper.
It depends on its nature either it is concentrated or dilluted but most of the time it shows red colour on pH paper
Potato juice is typically neutral or slightly acidic, so if you test it with litmus paper, blue litmus paper will remain blue, and red litmus paper will remain red. This indicates that potato juice does not change the color of either type of litmus paper, reflecting its neutral pH.
As soap is alkaline in nature, it turns red litmus paper blue
As orange contains acidic substances, a piece of pH paper would indicate a colour which is in the acid range and the strict colour may differ according to the fruit too.
blue
Red
When dipped in lemon juice, pH paper typically turns red or pink. This indicates that the lemon juice is acidic.
It will become red !
Lemon juice contains citric acid so blue litmus paper dipped in lemon juice will turn red indicating that it is acidic.
A green-y yellow.
Otgfcch
it turns acidic or very basic
red
dark pink
Lemon juice is an acid and blue litmus paper turns red when dipped in an acidic liquid.