write the metods for separting the followings

1. mecuty and water
2. potassuim chlorid and ammonium chlorid
3. common salt , water and sand
4. kerosin oil and water and salt
5. butter and cream
6. salt from sea water 
7.oil from water
8. tea leaves from tea 
9. iron fills from sand 
10. compounds of air 
11.colloidal solution 
12. chalk powder and water 
 

Dear student,
1) Mercury and water are immiscible. They can be easily separated by using a separating funnel.

2) A mixture of ammonium chloride and potassium chloride can be separated using the process of sublimation. You must also note that both these substances are sublimable.
Well this technique is quite feasible in this case as the sublimable temperatures of ammonium and potassium chloride differ widely.
Between the two, ammonium chloride has lower sublimable temperature. Therefore, it sublimes first followed by potassium chloride.




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