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प्रश्न
State the method used for collecting the following gas:
Oxygen – a gas slightly soluble in water.
उत्तर
The method used for collecting oxygen gas is the downward displacement of water. In this method, the gas jar is filled with water and inverted over the beehive shelf, so that the water is displaced downwards and oxygen is collected upwards.
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 |
Choose the correct alternative from the choices given below for the following statement:
Which one of the following is a pesticide?
State the functions of the following basic glass apparatus:
Beaker
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.
Select the correct name from the choices given below for the following case.
The scientist who formulated the Periodic Table.
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.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A glass apparatus that measures liquid by sucking the liquid at one end up to the marked level and later pouring it out.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A modern apparatus with an air regulator, used for heating purposes.
