long answer type questions 1- what is meant by classification of things into groups? how is this done? 2- what are the advantage of sorting things into group? 3- what do you understand by soluble and non-soluble substances? give two examples of each.
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1.classification meant that seperating things on the basis of their colour,size,shape,and physical properties
2.it helps us to find them in urgent.
3.substances which are soluble in water eg-sugar salt
substances which are not soluble in water eg.-oil
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1 ans- the process of shorting and grouping object according to some basic is called classification.
1) grouping of material is very useful to day to day life.
2) chemist arrange various medicine while the alphabetic or by a company name keep this medicine randomly without any grouping it would be e very difficult locate the needed medicines
3) groups also has in studying the properties of the object placed in particular group
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