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प्रश्न
Write True or False against the following statement.
Enzymes secreted by our body are chemicals:
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
What kind of experiments did Alchemists do?
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 |
State the function of
The asbestos fixed at the center of the wire gauze.
State the function of
The clamp mounted on the rod of a retort stand
‘Alchemists are older words for Chemists’. Discuss the statement in brief.
Give a comparative difference between soaps and detergents. Give a reason. why detergents have an advantage over soap.
Select the correct name from the choices given below for the following case.
The scientist who formulated the Periodic Table.
Select the correct name from the choices given below for the following case.
A water-soluble cleaning agent – not inactivated by hard water.
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.
