Advertisements
Advertisements
प्रश्न
Soaps were originally made from ______.
विकल्प
proteins
animal fats and vegetable oils
chemicals extracted from the soil
foam booster
Advertisements
उत्तर
Soaps were originally made from animal fats and vegetable oils.
APPEARS IN
संबंधित प्रश्न
Describe in brief the cleansing action of soap.
While studying the saponification reaction, what do you observe when you mix an equal amount of colourless vegetable oil and 20% aqueous solution of NaOH in a beaker?
(A) The colour of the mixture has become dark brown
(B) A brisk effervescence is taking place in the beaker
(C) The outer surface of the beaker has become hot
(D) The outer surface of the beaker has become cold
Which of the two is better for washing clothes when the water is hard: soap or detergent? Give reason for your answer.
How is soap made? Write a word equation involved in soap making.
What is a soap?
How will you check with the help of soap powder whether water is hard?
What is meant by ‘surface activity’?
Soaps are ester of which type of acids?
How does soap clean clothes?
What are the similarities between Soap and synthetic detergent.
