Home
Class 10
CHEMISTRY
Assertion (A): Soap has good cleansing a...

Assertion (A): Soap has good cleansing action.
Reason (R) : Soap has short chain of hydrocarbon which acts as hydrophobic and long ionic part which acts as hydrophilic.

A

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

B

Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).

C

Assertion (A) is true but reason (R) is false.

D

Assertion (A) is false but reason (R) is true.

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • NEW CHAPTERS AND QUESTIONS BASED ON LATEST TYPOLOGIES INTRODUCED BY CBSE FOR 2021-22 EXAMINATION

    OSWAL PUBLICATION|Exercise CARBON AND ITS COMPOUNDS (SELF ASSESSMENT) (C. Very Short Answer Type Questions)|3 Videos
  • NEW CHAPTERS AND QUESTIONS BASED ON LATEST TYPOLOGIES INTRODUCED BY CBSE FOR 2021-22 EXAMINATION

    OSWAL PUBLICATION|Exercise CARBON AND ITS COMPOUNDS (SELF ASSESSMENT) ( SHORT ANSWER TYPE QUESTIONS)|1 Videos
  • NEW CHAPTERS AND QUESTIONS BASED ON LATEST TYPOLOGIES INTRODUCED BY CBSE FOR 2021-22 EXAMINATION

    OSWAL PUBLICATION|Exercise CARBON AND ITS COMPOUNDS (SELF ASSESSMENT) (OBJECTIVE TYPE QUESTIONS) (A. Multiple Choice Questions)|3 Videos
  • METALS AND NON-METALS

    OSWAL PUBLICATION|Exercise Board corner(Long answer type questions)|20 Videos
  • NTSE 2019 - 20

    OSWAL PUBLICATION|Exercise (CHEMISTRY) ATOMS AND MOLECULES (STAGE - 2)|1 Videos

Similar Questions

Explore conceptually related problems

Assertion : Soap acts as emulsifier in its cleansing action. Reason : Soap has both hydrophilic and hydrophobic groups present.

The soap molecule has a hydrophobic head and a hydrophilic tail.

Which is incorrect for cleansing action of soaps?

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. Select the correct statements . I. In multimolecular collidal solutiobatoms of momecules are held togenther by va der Waaks' forces Cleansing action of soap is due to adsorption of iliy and gresy material at hydrophilic centres III. Hydorphilic part of oily and greasy materical at hydrophilic centres IV. The aggergation of ions i.e., micelle formation is independt of temeratrue .

A : Soap has both hydrophilic and hydrophobic gropus . R : Soap acts as emulsifier in cleaning action.

Assertion : Detergents are preferred to soaps for washing purpose . Reason : Detergents having branched hydrocarbon chains are non biodegradable .

Assertion (A) : Fe is protected from corrosing by connecting Mg metal with it. Reason (R) : Fe acts as cathode and Mg as anode which gradully disappears.

Assertion (A): AC load line is used for long distance transmission. Reason (R): It has very less loss of energy in long distance transmission.

OSWAL PUBLICATION-NEW CHAPTERS AND QUESTIONS BASED ON LATEST TYPOLOGIES INTRODUCED BY CBSE FOR 2021-22 EXAMINATION -CARBON AND ITS COMPOUNDS (SELF ASSESSMENT) (OBJECTIVE TYPE QUESTIONS) (B. Assertion and Reason Type Questions )
  1. Assertion (A): In esterification, carboxylic acid and alcohol reacts i...

    Text Solution

    |

  2. Assertion (A): Soap has good cleansing action. Reason (R) : Soap ha...

    Text Solution

    |