Question

You are provided with a fine white colored powder which is either salt or sugar. How would you identify it without tasting?

Answer 1

Identification of given powder as salt or sugar without tasting.

Explanation:

• The salt, as well as sugar, is white. The condition given is it must be identified without tasting.
• Thus as per the given scenario, the given substance must be either put for heating test or electrical conductivity test.
• In the case of the heating test, if the given powder is sugar, it may impart light brown color on heating whereas salt remains white.
• In the case of electrical conductivity, salt conducts electricity due to the presence of ions, whereas sugar is a bad conductor of electricity.

Learn more about such concept

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Answer 2

Answer:

On heating the powder, it will char if it is a sugar.

Alternatively, the powder may be dissolved in water and checked for its conduction of electricity. If it conductsm it is salt.