Soap acts as a cleansing agent because ...

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(B) Soap molecules consist of a long hydrocarbon chain (hydrophobic tail) and a polar head (hydrophilic head). When soap is added to water,the hydroph

Vedclass · Accepted Answer

Oil and grease dissolve in the hydrophilic center of the micelle.

Vedclass · Answer

(B) Soap molecules consist of a long hydrocarbon chain (hydrophobic tail) and a polar head (hydrophilic head). When soap is added to water,the hydrophobic tails cluster together to form a micelle,trapping oil and grease inside the non-polar core. The hydrophilic heads remain on the outside,interacting with the water,which allows the grease to be washed away. Therefore,oil and grease dissolve in the hydrophobic (non-polar) center of the micelle.

List-$I$ (Colloidal solution)	List-$II$ (Use)
Colloidal antimony	$I$. Kala-azar
Argyrol	$II$. Eye lotion
Colloidal gold	$III$. Intramuscular injection
Milk of magnesia	$IV$. Stomach disorders

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Match the following:
List-$I$ (Colloidal solution) List-$II$ (Use)
Colloidal antimony $I$. Kala-azar
Argyrol $II$. Eye lotion
Colloidal gold $III$. Intramuscular injection
Milk of magnesia $IV$. Stomach disorders
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