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प्रश्न
State the functions of the following basic glass apparatus:
Beaker
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उत्तर
Beaker: It is used for holding pouring and mixing solutions.
संबंधित प्रश्न
What is ‘Philosopher’s stone’?
What is the contribution of chemistry in the following field?
National Defence
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 function of
The wooden handle at the end of the test tube holder.
‘Alchemists are older words for Chemists’. Discuss the statement in brief.
In the medieval ages – the philosopher’s stone was connected with all transformations. Explain.
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.
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.
For holding washed test tubes
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.
