A clay vessel kept in a trough of water during the collection of a gas by downward displacement of water.
Important Questions on Introduction to Chemistry
A modern apparatus with an air regulator, used for heating purpose.
A rectangular mesh with asbestos at its centre, kept for initiating even distribution of heat to the bottom of the apparatus.
Give reasons for the following:
Alchemy was considered a pseudoscience.
Give reasons for the following:
Preservatives are added to food or beverages.
Give reasons for the following:
Titanium dioxide is an important ingredient in cosmetics.
Give reasons for the following:
Aspirin is one of the most widely used medications globally.
Give reasons for the following:
Ordinary soap is wasted in hard water.
Give reasons for the following:
A philosopher's stone is not exactly a stone.
