Question

When a drop of phenolphthalein is added to the solution of a white substance, it turns pink. When a
drop of an acid is added to this pink solution, heavy effervescence is formed and the solution turns colourless.
(a) What is the nature of the white substance?
(b) Write the name of a probable compound.
(C) Write down the chemical equation for the reaction between the compound and the acid added to its solution​

Answer 1

Answer:  a) basic - since phenolphthaleinchges pink when it reacts with a basic substance.

b) baking soda

c) NaHCO3 (baking soda) + CH3COOH (acetic acid) => CO2 (carbon dioxide) +

    H2O (water)