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प्रश्न
Name the property which allows metals to be hammered into thin sheets.
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उत्तर
The property of metals that allows them to be hammered into thin sheets is called malleability.
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संबंधित प्रश्न
Select the correct alternative
The molecules can move freely anywhere in
- gases
- liquids
- solids
- none of the above
Gases have definite volume but no definite shape.
Fill in the blank
Liquids have a definite ______
Classify the following into elements, compounds and mixtures:
- Sodium
- Soil
- Sugar solution
- Silver
- Calcium carbonate
- Tin
- Silicon
- Coal
- Air
- Soap
- Methane
- Carbon dioxide
- Blood
In a beam of sunlight entering a room, we can sometimes see dust particles moving in a haphazard way in the air. Why do these dust particles move?
What is the general name of the materials which contain at least two pure substances and show the properties
of their constituents ?
What name is given to those elements which are neither good conductors of electricity like copper nor insulators like sulphur ?
State whether colloidal solutions are homogeneous or heterogeneous.
Fill in the following blank :
Milk is a .................... solution but vinegar is a .................... solution.
What do you understand by the statement " the solubility of copper sulphate in water at 20°C is 20.7 g" ?
A carpenter wants to separate iron nails from saw-dust. Which method of separation should he choose ?
Name the process which is used in milk dairies to separate cream from milk.
Fill in the following blanks with suitable words :
A mixture of kerosene and petrol can be separated by .....................
What is fractional distillation ? What is the use of fractionating column in fractional distillation ?
Explain how, nitrogen , oxygen and argon gases are separated from air.
All the matter made of ______.
The non S I and S I units of some physical quantities are given in column A and column B respectively. Match the units belonging to the same physical quantity:
| (A) | (B) | ||
| (a) | degree celsius | (i) | kilogram |
| (b) | centimetre | (ii) | pascal |
| (c) | gram per centimetre cube | (iii) | metre |
| (d) | bar | (iv) | kelvin |
| (e) | milligram | (v) | kilogram per metre cube |
Intermolecular space is maximum in ______.
The fluidity of solids: ______.
Define the term matter.
