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प्रश्न
Match the physical quantities given in column A to their S I units given in column B:
| (A) | (B) | ||
| (a) | Pressure | (i) | cubic metre |
| (b) | Temperature | (ii) | kilogram |
| (c) | Density | (iii) | pascal |
| (d) | Mass | (iv) | kelvin |
| (e) | Volume | (v) | kilogram per cubic metre |
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उत्तर
| (A) | (B) | ||
| (a) | Pressure | (iii) | pascal |
| (b) | Temperature | (iv) | kelvin |
| (c) | Density | (v) | kilogram per cubic metre |
| (d) | Mass | (ii) | kilogram |
| (e) | Volume | (i) | cubic metre |
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संबंधित प्रश्न
Match the following
| Column A | Column B | ||
| (a) | Molecules | (i) | Water boils |
| (b) | 100° C | (ii) | Evaporation |
| (c) | 0° C | (iii) | Changes from solid to gas |
| (d) | At all temperatures | (iv) | Matter |
| (e) | Camphor | (v) | Water freezes |
Honey is more viscous than water. Can you suggest why?
What are the two types of pure substances? Give one example of each type.
Which of the following substances are elements ?
Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine
State two physical properties on the basis of which metals can be distinguished from non-metals.
Give reason why copper metal is used for making electric wires.
Which one of the following is not a metalloid ?
Which of the following statements are true for pure substances ?
- pure substances contain only one kind of particles
- pure substances may be compounds or mixtures
- pure substances have the same composition throughout
- pure substances can be exemplified by all elements other than nickel
In the following set of substances, one item does not belong to the set. Select this item and explain why it does not belong to the set :
Hydrogen, Oxygen, Steam, Chlorine
Choose the correct answer.
A 5 per cent sugar solution means that :
Name the different types of solutions. Give one example of each.
Classify the following into solutions, suspensions and colloids :
Soda-water, Milk, Brine, Blood, Ink, Smoke in air, Chalk water mixture, Milk of Magnesia, Shaving cream, Muddy river water.
What do you understand by the statement " the solubility of copper sulphate in water at 20°C is 20.7 g" ?
State whether the following statement are true or false :
Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
Describe a method to separate a mixture of common salt and sand.
Write a method to separate a mixture of sand and potash alum.
How would you obtain sodium chloride from a mixture of sodium chloride and sulphur without using water ?
Differentiate between the-two characteristics of matter – ‘mass’ & ‘weight’.
Liquids have ______.
Define the term matter.
