Question

Question no 23
Please help me tomorrow is my exammmmm


I will mark u as the brainliest

Answer 1

When blue litmus paper into ch3cooh it will turn to red due to acidic nature of the chemical but if we will dip that in na2co3 it will change to blue due to basic nature of chemical and after dipping it again in ch3cooh it will change red again due to acidic nature of this chemical.