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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
What is alchemy?
How is the knowledge of chemistry important to mankind?
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:
Trinitrotoluene is used as
Choose the correct alternative from the choices given below for the following statement:
Used is an important
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 air regulator in a Bunsen burner.
State the method used for collecting the following gas:
Sulphur dioxide – a gas highly soluble in water and heavier than air
Select the correct name from the choices given below for the following case.
The scientist who formulated the Periodic Table.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A long glass apparatus closed at one end used for collecting gases.
