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प्रश्न
Select the correct name from the choices given below for the following case.
A water-soluble cleaning agent – not inactivated by hard water.
विकल्प
Soap
Detergent
Cleanser
उत्तर
Detergent
संबंधित प्रश्न
What is alchemy?
How is the knowledge of chemistry important to mankind?
Write True or False against the following statement.
Chemistry plays an important role in the national economy:
Write True or False against the following statement.
Gunpowder is an insecticide:
Choose the correct alternative from the choices given below for the following statement:
Which one of the following is a pesticide?
Match the following scientists in column A with their discoveries or contributions in column B.
| Column A | Column B | ||
| (a) | Marie Curie | (i) | Safety Lamp |
| (b) | John dalton | (ii) | Helium |
| (c) | William Ramsey | (iii) | Nobel Prize Winner (two times) |
| (d) | Sir Humphry Davy | (iv) | Atomic Theory |
In the medieval ages – the philosopher’s stone was connected with all transformations. Explain.
Give a comparative difference between soaps and detergents. Give a reason. why detergents have an advantage over soap.
Select the correct name from the choices given below for the following case.
A substance which absorbs moisture and keeps the skin dry and free from rashes.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
For gas preparations where heating is required.
