Which of the followings is NOT a characteristic of an ideal solution?
There is no volume change on mixing
It must be colourless
It must obey Raoult’s law
There is no enthalpy change on mixing
2 What is a compound?
A substance which contains two or more elements physically combined together in fixed ratio.
A substance which contains only metallic and non-metallic elements chemically joined together.
A substance which cannot be separated into its simpler substances by heating alone.
A substance which is made up of two or more elements chemically combined together.
3 Pressure has an appreciable effect on the solubility of __________ in liquids.
Answer: 1. It must be colourless 2. A substance which is made up of two or more elements chemically combined together. 3. gases