Question

Which of the given compounds has the formula ${\mathrm{NaHCO}}_3$?

• A. Vinegar
• B. Baking soda
• C. Caustic Soda
• D. Washing soda

Answer 1

The correct option is B

Baking soda

${\text{NaHCO}}_3$ is the chemical formula of sodium bicarbonate (baking soda). They are extensively used in the baking industries as carbon dioxide is generated (due to decomposition of ${\text{NaHCO}}_3$) which helps in the raising of the dough. The reaction involved is:
${\text{2NaHCO}}_3\text{(s)}\to {\text{Na}}_2{\text{CO}}_3\text{(s)}+{\text{CO}}_2\text{(g)}+{\text{H}}_2\text{O(g)}$