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प्रश्न
Select the correct name from the choices given below for the following case.
Predecessors to the modern Chemist who created the ‘Philosopher's stone’.
पर्याय
Botanists
Alchemists
Physicists
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उत्तर
Alchemists
संबंधित प्रश्न
Name six such products, which we use daily.
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 |
Write True or False against the following statement.
Chemistry plays an important role in the national economy:
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 clamp mounted on the rod of a retort stand
State the method used for collecting the following gas:
Oxygen – a gas slightly soluble in water.
Give a comparative difference between soaps and detergents. Give a reason. why detergents have an advantage over soap.
State what are – ‘stain removals’. Name three important stain removers & give their prime functions.
Select the correct name from the choices given below for the following case.
A chemical used as a preservative for jams, pickles, etc.
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.
