Question

Explain by writing a word equation.

Bubbles are seen on adding lemon juice to baking soda.

Answer 1

Bubbles are seen on adding lemon juice to baking soda because lemon juice is citric acid and baking soda is sodium bicarbonate. On adding lemon juice in baking soda, we add acid in the base then neutralization reaction is taking place resulting in the formation of salt, water and brisk effervescence of carbon-dioxide. This CO₂ is released in the form of bubbles.

H₂C₆H₅O₇(aq) + 3NaHCO₃(aq) → Na₃C₆H₅O₇(aq) + 3H₂O(l) + 3CO₂(g)

citric acid + baking soda → salt + water + carbon dioxide

Bubbles are seen on adding lemon juice to baking soda.