1. what is the need of separation of components from their mixtures?
2. what is a heterogeneous mixtures? what are its two common form?
3. what do you understand by the term solution?
4. Describe an experiment to separate a mixture using magnetic separation and filtration method
5. How will you separate the following mixture into their components? Give reason for preferring a particular order of technique?
a. iron fillings, sand, ammonium chloride
b. sand , kerosene oil, Water.
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Most of the materials are there in our surrounding which are the mixtures of two or more components. For example, when we need to obtain pure water from dirty water then, we have to purify the substances i.e. dirty water or we might filter it or distil it.
heterogeneous mixture are mixtures of two or more substance with non uniform composition
eg sand and salt
is solution is a heterogeneous mixture of two or more non reacting substances whose composition can be varied within certain limits
iron fillings , ammonium chloride, sand
kerosene oil, water , sand
the reason is that the process of seperating these substances in above mentioned order is much easier than taking each one of them
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