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Physics 7 Online
OpenStudy (anonymous):

Why is a soap solution a better cleansing agent than ordinary water?

OpenStudy (anonymous):

Becomes it results in formation of micelles which help in cleaning action which is not possible in watre.

OpenStudy (anonymous):

a soap sol is better cleaning agent becoz it form micelles easily

OpenStudy (anonymous):

its 4 2 marks,will u expand the answer?

OpenStudy (anonymous):

Sure chechi. Just wait for 5 minutes.

OpenStudy (anonymous):

ya definately

OpenStudy (anonymous):

Do u have the NCERT class 10 Science book? Its given in Chapter 4, ina nice manner.

OpenStudy (anonymous):

srry,its not with me...

OpenStudy (anonymous):

Okay, then listen. A soap molecule is a sodium or potassium salt of long chain carboxylic acids. The dirt is generally oily in nature. When soap reacts with water and dirt , the hydrophilic part becomes soluble in water, while hydrophobic end becomes soluble in hydrocarbons. A soap arranges its molecules in the form of a cluster, where ionic ends r on the edge, while hydrophobic ends r embedded in the centre. These clusters r called micelles. Soap in the form of a micelle is able to clean, since it forms a colloidal solution in water. Thus it helps to clean clothes.

OpenStudy (anonymous):

and wat abt water?

OpenStudy (anonymous):

Water does not form micelles, since it is purely ionic. Dirt is oily in nature, so soluble in hydrocarbons.

OpenStudy (anonymous):

thank u

OpenStudy (anonymous):

aiswaraya james i think u r in 10 & u hav nt read d book throughly

OpenStudy (anonymous):

now in +1

OpenStudy (anonymous):

i was preparing 4 my annual exam

OpenStudy (anonymous):

then its a shame 4 u that u don't know about soap becoz its in 10

OpenStudy (anonymous):

& nt in 1st term that u forget easily its in 2nd term

OpenStudy (anonymous):

Don't say like that abhilasha, she is my chechi!!!!!!!!!!!!!!

OpenStudy (anonymous):

badibehen hain woh!!!!!!!!

OpenStudy (anonymous):

am in so fast to find answers 4 200 question given by my phsics sir ,thats y frnd,my brain is not working.......its exam is on monday...only yesterday he gave questions....

OpenStudy (anonymous):

Ooooooooooooooooooo

OpenStudy (anonymous):

ok ash

OpenStudy (anonymous):

sry abhilasha!!!!!!

OpenStudy (anonymous):

aadarsh don't tell me that how i talk 2 any 1

OpenStudy (anonymous):

abhilasha,wat u r doing

OpenStudy (anonymous):

sorryyyyyyyyyyyyyy abhilasha didi!!!!!!!!!!!!!!!!!!! Aur galti nahin hogi. I was kidding!!!!!!!!!!!ROFL!!!!!!

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