Advertisements
Advertisements
प्रश्न
State the functions of the following basic glass apparatus:
Round bottom flask
Advertisements
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
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 |
Choose the correct alternative from the choices given below for the following statement:
Which one of the following is a pesticide?
State the function of
The air regulator in a Bunsen burner.
State the method used for collecting the following gas:
Oxygen – a gas slightly soluble in water.
Select the correct name from the choices given below for the following case.
The branch of Chemistry which includes a study of specific carbon compounds – built up mainly carbon and hydrogen.
Select the correct name from the choices given below for the following case.
Predecessors to the modern Chemist who created the ‘Philosopher's stone’.
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.
Give reasons for the following
Alchemy was considered a pseudoscience.
