Question

Pinch of baking soda is added to vinegar in a test tube and hissing bubbles of a gas are observed.

This gas is passed through freshly prepared solution of lime water.

(a) What is lime water?

(b) What happens to the lime water when gas is passed through it?

(c) Identify the gas evolved.

(d) What is the chemical name of baking soda?

(e) Write all the reaction involved.​

Answer 1

Answer:

a) Lime water is nothing but calcium hydroxide.

b) Lime water turns milky.

c) Carbon dioxide (CO2).

d) sodium bicarbonate.

e) NaHCO3 + CH3COONa → CH3COONa + H2O + CO2