Question

when dilute hydrochloric acid is added to a sodium compound A, then brisk effervescence of a gas is produced. On passing this gas through lime water the limewater turns milky farming and insoluble compounds see when excess of gas is passed, the insoluble compound dissolves forming a soluble compound D. a) what could be compound A? b) Name the gas B. c) Name the insoluble compound C. d) Name the soluble compound D.

Answer 1

1. Sodium bicarbonate

2. Carbon dioxide

3. Calcium carbonate

4. Calcium bicarbonate

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