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प्रश्न
State the functions of the following basic glass apparatus:
Hard glass boiling tube
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उत्तर
Hard glass boiling tube: It is resistant to chemicals and used for special purposes. It is made of pyrex
संबंधित प्रश्न
What is science?
What is chemistry?
Name six such products, which we use daily.
Who is known as the Father of chemistry? Why?
Match the following words in column A with those in column B:
| Column A | Column B | ||
| (a) | Clothing | (i) | toothpaste, cosmetics |
| (b) | Green Revolution | (ii) | nylon, wool |
| (c) | Building Material | (iii) | agriculture |
| (d) | Commodities of daily | (iv) | mortar, cement |
Write True or False against the following statement.
Gunpowder is an insecticide:
State the function of
The asbestos fixed at the center of the wire gauze.
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 name from the choices given below for the following case.
A chemical used as a preservative for jams, pickles, etc.
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
