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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
What kind of experiments did Alchemists do?
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 what is Science and give the basic bifurcation of Science with reasons.
State the functions of the following basic glass apparatus:
Glass test tube
State the function of
The wooden handle at the end of the test tube holder.
State the function of
The asbestos fixed at the center of the wire gauze.
State the method used for collecting the following gas:
Oxygen – a gas slightly soluble in water.
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 branch of Chemistry which includes a study of specific carbon compounds – built up mainly carbon and hydrogen.
Give reasons for the following
Alchemy was considered a pseudoscience.
