Advertisements
Advertisements
प्रश्न
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 |
Advertisements
उत्तर
| Column A | Column B | ||
| (a) | Marie Curie | (iii) | Nobel Prize Winner (two times) |
| (b) | John dalton | (iv) | Atomic Theory |
| (c) | William Ramsey | (ii) | Helium |
| (d) | Sir Humphry Davy | (i) | Safety Lamp |
APPEARS IN
संबंधित प्रश्न
How is the knowledge of chemistry important to mankind?
Write True or False against the following statement.
Enzymes secreted by our body are chemicals:
State the functions of the following basic glass apparatus:
Glass test tube
State the functions of the following basic glass apparatus:
Beaker
State why a round bottom flask is preferred to a flat bottom flask – during the preparation of gases in the laboratory.
State the function of The tap at the base of a burette.
Select the correct name from the choices given below for the following case.
Predecessors to the modern Chemist who created the ‘Philosopher's stone’.
Match the apparatus A to J shown below with their correct names 1 to 10 given below:
1. Delivery Tube
2. Pipette
3. Wire gauze
4. Bee-hive shelf
5. Thistle funnel
6. Flat bottom flask
7. Test tube stand
8. Burette
9. Retort
10. Conical flask
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A metallic apparatus which supports the wire gauze.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A rectangular mesh with asbestos at its centre kept for initiating even distribution of heat to the bottom of the apparatus.
