EASY
Earn 100

Why soap are not effective in hard water? Explain.

Important Questions on Chemistry in Everyday Life

MEDIUM
Define saponification. Write in short the modern method for the preparation of soap. Write main differences between bath soap and washing soap.
MEDIUM
What are soaps? Write the method of its preparation in short. Why does soap not work in hard water? What is the primary structure of protein? Explain with example.
MEDIUM
Write the chemical equation for saponification. Also give the limitations of soap.
EASY
Which cleansing agent gets precipitated in hard water?
MEDIUM
Explain the cleansing action of soaps.
MEDIUM
Which of the following enhances the lathering property of soap?
EASY
Detergents can be made biodegradable and pollution free by
MEDIUM

Identify to which type does the following complex reactions belongs to-

  • saponification of a diester in presence of an alkali
EASY
Soft soaps are potassium salts of higher fatty acids. 
EASY
Which of the following is an anionic detergent?
MEDIUM
Glycerol is added to soap. What is its function?
EASY
Which one of the following statements is "not correct" about cationic detergents?
HARD

Write the difference between a soap and a synthetic detergent. 

EASY
Which one of the following is an anionic detergent?
MEDIUM
Which of the following is cationic detergent?
EASY
An organic compound that is commonly used for sanitizing surfaces is:
MEDIUM
Why soap does not work in hard water?