Question

a student dipped pH paper in three test tubes a b c containing sodium carbonate, lemon juice and distilled water respectively what will you observe arrange these solution order of increasing PH value .
please help me

Answer 1

As Lemon Juice is Acidic Distilled Water is neutral And Sodium carbonate is a Base Hence The Increasing order is...
B<C<A

Answer 2

Lemon juice < Distilled water < Sodium Carbonate.

The pH paper will be red in lemon juice, green in distilled water and blue in sodium Carbonate.