EASY
Earn 100

Which of the following is a cleansing agent.

66.67% studentsanswered this correctly

Important Questions on Carbon and its Compounds

MEDIUM
The soap molecules form structures called micelles where one end of molecules is towards the oil droplet while ionic end faces outside?
MEDIUM
Explain the cleaning process of soap and detergent.
MEDIUM
Can detergent be used to test the hardness of water? Give reason.
MEDIUM
Give two points of difference between soap and detergent.
HARD
Explain the mechanism of the cleaning action of soap. 
MEDIUM
Give a point of difference between soaps and detergents.
MEDIUM

Name the structure shown in the figure. Label 1 and 2.

Question Image

 

 

HARD

Explain the mechanism of the cleaning action of soaps. 

MEDIUM
 Define detergents. Write any three differences between a soap and a detergent.
EASY

Detergents are also called surface-active agents (surfactants). These have two distinct parts: one hydrophilic spherical part and another hydrophobic long tail made of carbons chain. Two experiment ‘A’ and ‘B’ were carried out. In experiment ‘A’, surfactant was added in a beaker containing water. In experiment ‘B’, surfactant was added in a beaker containing hexane.
 Following are possible results in these experiments.
I. In experiment ‘A’(see figure) ‘a’ micelle is formed, where hydrophobic part is inside the micelle and hydrophilic part is outside the micelle.
II. In experiment ‘B’(see figure ‘b’) micelle of reverse type is formed where hydrophilic part is inside the micelle and hydrophobic part is outside the micelle.
III. Micelle of reverse type is formed in experiment ‘A’.
IV. Micelles are large enough to scatter light in ‘A’

Question Image

Correct observations are:

HARD
Explain the cleansing action of soap.
EASY

Write short note on following-

  • Detergent
EASY
Write any two differences between soap and detergent.
EASY
Give the general formula for soap. 
HARD
How are soap-micelles formed? Describe. 
 
EASY
A by-product of the soap industry is ____.