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Surfactants are the substances which show surface activity .Detergents possess surface activtiy as wll as detergency . Soaps are anionic class of detergents . It is the hydorphilic part of detergent momencule which possesses the tendecy to attract water moleculse wheras hydrophilic blances part orients away from waer . The hydrophilic-lipphilic balance (HLB) leads to affergation of anooic or non-ionic or cationci part of detergent to form icellse . Each molecule has the defintie concentration at defintie temperature at which it states to aggrater . It is due to teh presence of two moities in their molecules, surffactants stabilize emulision ( a water -oil system ) . Due to larger surface area, the mediacines are more effective in emulion form . Emulisons are ` w//o or o //w type`. A water soluble dye imparts its collour to ` o//w` emulsions. Which is incorrect about soaps?A. Soaps are metal salts of fatty acidsB. Soaps are anionic class of surfactants of detergentsC. Soaps form anionic micelles i.e., carrying -ve charge .D. none of these |
Answer» Correct Answer - d ` RCOOON ararr RCOO^- + Na^+` Undergoes micelle formation to produce ` -ve` micelle . |
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