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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
All kinds of matter
Which of the following materials fall in the category of a “pure substance”?
- Ice
- Milk
- Iron
- Hydrochloric Acid
- Calcium oxide
- Mercury
- Brick
- Wood
- Air
An inflated balloon full of air goes down slowly (becomes smaller and smaller slowly) even though the knot at the mouth of the balloon is airtight. And after a week all the air has escaped from the balloon. Explain how the air particles got out of the balloon.
What is meant by saying that non-metals are brittle ?
What is the general name of the materials which contain at least two pure substances and show the properties
of their constituents ?
What is the difference between solutions and colloids ?
How will you differentiate between a suspension and a colloid ?
One of the following liquids will leave behind a residue on heating. This one is :
Which of the following can be called a suspension ?
Tincture of iodine has antiseptic properties. This solution is made by dissolving :
What difference in the property of two miscible liquids enables their separation by fractional distillation ?
Fill in the following blanks with suitable words :
Miscible liquids are separated by .....................
Fill in the following blanks with suitable words :
The separation of liquids by fractional distillation is based on the difference in their .....................
How will you separate a mixture containing sand and sugar ?
With the help of a labelled diagram, describe the method of separating ammonium chloride from a mixture of ammonium chloride and common salt. Mention the difference in the properties of ammonium chloride and sodium chloride which has made this separation possible.
Wipe the board with a duster and then tap the duster against the table. What do you see?
If there is a sudden shower, we take shelter under a roof at the roadside. Even though the rain does not fall on us directly, we get wet to some extent. Why ?
The property which allows the metals to be hammered into their sheets is ______.
Gas-solid is ______.
Define the term matter.
