Question 7
Mention the principle of Kipp’s apparatus to prepare gas.
Answer
The Kipp’s apparatus is a laboratory apparatus used to prepare gases by the reaction of a solid with a liquid. It consists of three interconnected glass bulbs arranged vertically, with the solid in the middle bulb. The upper and lower bulbs are connected by a tube and contain the liquid. The middle bulb has a tube with a tap for drawing off gas.
The principle of the Kipp’s apparatus is as follows:
- The liquid is poured into the upper bulb.
- The solid is placed in the middle bulb.
- The tap is closed.
- The pressure of the gas in the middle bulb forces the liquid down into the lower bulb.
- The solid and liquid react to form gas.
- The gas accumulates in the middle bulb.
- The tap is opened and the gas is drawn off.
