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प्रश्न
State the functions of the following basic glass apparatus:
Round bottom flask
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उत्तर
Round bottom flask: In preparation of gases, where heating is required. Since the flask is round-bottomed, heat is uniformly distributed throughout on heating.
संबंधित प्रश्न
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 the function of
The asbestos fixed at the center of the wire gauze.
State the method used for collecting the following gas:
Oxygen – a gas slightly soluble in water.
State the method used for collecting the following gas-
Ammonia – a gas highly soluble in water and lighter than air
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.
Select the correct name from the choices given below for the following case.
A Medicine to treat pain, fever & inflammation.
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 glass apparatus resistant to chemicals, made of pyrex, and used for heating specific liquids.
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.
