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प्रश्न
Soap is a salt of ______ and sodium hydroxide.
विकल्प
white cement
soap
detergent
wearing of bones
tooth decay
hard
soft
Portland
fatty acid
उत्तर
Soap is a salt of fatty acid and sodium hydroxide.
संबंधित प्रश्न
Describe in brief the cleansing action of soap.
Why does micelle formation take place when soap is added to water? Will a micelle be formed in other solvents such as ethanol also?
What change will you observe if you test soap with litmus paper (red and blue)?
Fill in the following blank with suitable word:
............. is better than soap for washing clothes when the water is hard.
What is a detergent? Name one detergent.
Why are soaps not suitable for washing clothes when the water is hard?
Explain why often coloured spots are formed on clothes during washing.
Water, coconut oil, and _______ are necessary for soap preparation.
Arrange the following statements in correct sequence
- Pour that solution into an empty matchbox, soap can be obtained after drying.
- Take the necessary quantity of water in a jar.
- Then add coconut oil drop by drop and stir it well.
- Add concentrated sodium hydroxide in the jar and allow it to cool.
- Try this soap to wash your hand kerchief.
- Cover your work area with old newspaper.
______ to remove strong strains on the clothes.
