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प्रश्न
State the function of
The air regulator in a Bunsen burner.
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उत्तर
The air regulator has holes and is used for regulating the flame.
संबंधित प्रश्न
What is chemistry?
Who is known as the Father of chemistry? Why?
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 |
State the functions of the following basic glass apparatus:
Beaker
State the function of The tap at the base of a burette.
State the method used for collecting the following gas:
Sulphur dioxide – a gas highly soluble in water and heavier than air
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 apparatus from A, B, or C for the following functions of the apparatus given.
For gas preparations where heating is required.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A modern apparatus with an air regulator, used for heating purposes.
