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प्रश्न
Fill in the following blanks with suitable words :
The gases of air can be separated by fractional distillation of liquid air because they have different..............
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उत्तर
The gases of air can be separated by fractional distillation of liquid air because they have different boiling points.
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संबंधित प्रश्न
What are the two types of pure substances? Give one example of each type.
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Name a metal which has a low melting point.
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The elements which normally exist in the liquid state are :
There are three substances X, Y and Z. The substance X does not have a fixed melting point or boiling point and it still shows the individual properties of its constituents. The substance Y is a pure substance which occurs in nature as such. The substance Y has a fixed melting point and boiling point but it cannot be broken down into simpler substances by any chemical means. The substance Z is also a pure substance whose properties are entirely different from those of its constituents. The substance Z can, however, be divided by electrolysis into two substances which belong to the same class of substances as Y.
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- What type of substance could Y be ? Name one substance like Y.
- What type of substance could Z be ? Name one substance like Z.
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- Name the three groups into which all the substances like Y are divided on the basis of their properties.
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What's the solution?
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