Question

Long-answer questions (70 words)<br />A substance X is whitish in colour. It is used for baking and also for cleaning,<br />a. What chemical test will you perform to identify the nature of X?<br />b. What could X be?<br />C.<br />What is the taste and texture of X?<br />d. What happens when hydrochloric acid is added to X?<br />What is the chemical name of X?<br />e.​

Answer 1

Calcium oxide

• The chemical substance X used for whitewashing is Calcium oxide, also known as quicklime or burnt lime or lime. Calcium oxide is an alkaline earth flux with the chemical formula CaO.