Question

Acetic acid was added to a solid X kept in a test tube. A colourless, odourless gas Y was evolved. The gas was passed through lime water, which turned milky. It was concluded that ______.

Options

• solid X is sodium hydroxide and the gas Y is CO₂

• solid X is sodium bicarbonate and the gas Y is CO₂

• solid X is sodium acetate and the gas Y is CO₂

• solid X is sodium bicarbonate and the gas Y is SO₂.

Answer 1

Acetic acid was added to a solid X kept in a test tube. A colourless, odourless gas Y was evolved. The gas was passed through lime water, which turned milky. It was concluded that solid X is sodium bicarbonate and the gas Y is CO₂.