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प्रश्न
State the function of
The wooden handle at the end of the test tube holder.
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उत्तर
The wooden handle at the end of the test tube being a poor conductor of heat makes holding the test tube holder easy.
संबंधित प्रश्न
Name six such products, which we use daily.
What is the contribution of chemistry in the following field?
National Defence
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 |
State what is Science and give the basic bifurcation of Science with reasons.
State the functions of the following basic glass apparatus:
Retort
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 glass apparatus resistant to chemicals, made of pyrex, and used for heating specific liquids.
