One day Reeta went to a jeweller’s shop with her mother. Her mother gave an old gold jewellery to the goldsmith to polish. Next day when they brought the jewellery back, they found that there was a slight loss in its weight. Can you suggest a reason for the loss in weight?
Give reasons for the following.
Immersion rods for heating liquids are made up of metallic substances.
Match the substances given in Column A with their uses given in Column B.