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प्रश्न
What is alchemy?
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उत्तर
The word “Alchemy” has its origin in a Greek word ‘Khemeia’ means “art of transmuting metals”. It was partly based on experimentations and partly on spiritual discipline
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संबंधित प्रश्न
Name six such products, which we use daily.
What is the contribution of chemistry in the following field?
National Defence
Write True or False against the following statement.
Chemistry plays an important role in the national economy:
Write True or False against the following statement.
Gunpowder is an insecticide:
Write True or False against the following statement.
Enzymes secreted by our body are chemicals:
Match the following scientists in column A with their discoveries or contributions in column B.
| Column A | Column B | ||
| (a) | Marie Curie | (i) | Safety Lamp |
| (b) | John dalton | (ii) | Helium |
| (c) | William Ramsey | (iii) | Nobel Prize Winner (two times) |
| (d) | Sir Humphry Davy | (iv) | Atomic Theory |
State the function of
The clamp mounted on the rod of a retort stand
State the function of
The air regulator in a Bunsen burner.
Select the correct name from the choices given below for the following case.
A synthetic fiber used in clothing.
Select the correct name from the choices given below for the following case.
A Medicine to treat pain, fever & inflammation.
