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Mineral nutrition

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Class 10 Class 12

How will you effect the separation of:
(i) Two immiscible liquids
(ii) Two miscible liquids
(iii) Two organic solids differing in solubility in same solvent ?


(i) By extraction with a separating funnel.
(ii) By fractional distillation.
(iii) By fractional crystallisation.
It is based on the difference in the solubilities of the compound and impurities in a suitable solvent.


Classify the following transformations according to the reaction type.
straight C subscript 6 straight H subscript 5 CHO space plus space CH subscript 3 COCH subscript 3 space space rightwards arrow space space space straight C subscript 6 straight H subscript 6 CH left parenthesis OH right parenthesis CH subscript 2 COCH subscript 3




It is a Condensation reaction.


List various methods used for the purification of organic solids. 


(i) Crystallisation     (ii) Fractional cyrstallistaion (iii) Sublimation    (iv) Differential extraction (v) Chromatography


Classify the following transformations according to the reaction type.
left parenthesis CH subscript 3 right parenthesis subscript 3 CCl space plus space HO to the power of minus space space rightwards arrow space space space left parenthesis CH subscript 3 right parenthesis subscript 2 straight C space equals space CH subscript 2 space plus space straight H subscript 2 straight O space plus space Cl to the power of minus



It is a Elimination reaction. 


Classify the following transformations according to the reaction type.
left parenthesis straight H subscript 3 straight C right parenthesis subscript 2 straight C space equals space straight C left parenthesis CH subscript 3 right parenthesis subscript 2 space plus space Br subscript 2 space rightwards arrow space space left parenthesis straight H subscript 3 straight C right parenthesis subscript 2 straight C space equals space straight C left parenthesis CH subscript 3 right parenthesis CH subscript 2 Br space plus HBr


Substitution reaction.