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प्रश्न
What is ‘Philosopher’s stone’?
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उत्तर
The goal of alchemy was to find a mythical and magical substance called “philosopher’s stone” not a literal stone but wax, liquid or powder with magical power, which on heating with a base, iron and copper metals would turn into gold, the purest form of matter which would bring wealth, health and immortality.
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संबंधित प्रश्न
What is science?
What is alchemy?
What kind of experiments did Alchemists do?
Name six such products, which we use daily.
State what is Science and give the basic bifurcation of Science with reasons.
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.
A substance which dissolves grease & oil and is preferred as a – drain cleaner.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
For gas preparations where heating is required.
Select the correct apparatus from A, B, or C for the following functions of the apparatus given.
A long glass tube with a broad inlet at the top, which allows entry of the reactants into the round bottom flask, during laboratory preparations of gases.
