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प्रश्न
Name one pair of liquids which can be separated by using a separating funnel.
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उत्तर
Kerosene and water are two immiscible liquids which can be separated by using a separating funnel.
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संबंधित प्रश्न
Name the terms for the change of a solid into liquid.
Fill in the blank
Any matter which has a definite _______ but no definite shape is called a _______
What is the scientific name of particles which make up mater?
Out of solids, liquids and gases, which one has :
- maximum movement of particles ?
- maximum interparticle attractions ?
- minimum spaces between particles ?
Name the scientist who studied the movement of pollen grains suspended in water through a microscope. What is this phenomenon known as?
Classify the following as elements or compounds :
Iron, Iron sulphide, Sulphur, Chalk, Washing soda, Sodium, Carbon, Urea
Which of the following substances are elements ?
Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine
Name a metal which forms amalgams.
Classify the following into elements, compounds and mixtures :
arble, Air, Gold, Brass, Sand, Diamond, Graphite, Petroleum, Common salt, Sea-water, Chalk
Draw a flow-chart for the schematic representation of different types of matter.
Which of the following are compounds ?
- CO
- No
- NO
- Co
Explain what happens when a beam of light is passed through a colloidal solution.
Which of the following do not exhibit Tyndall effect ?
Starch solution, Sugar solution, Ink, Salt solution, Copper sulphate solution, Ammonium chloride solution, Fog, Smoke, Car exhausts.
Fill in the following blanks with suitable words :
Immiscible liquids are separated by using a .....................
How will you separate a mixture of common salt, sulphur powder and sand ?
Asmita went to buy an earthen pot. There she saw many things kept for sale.
From what substance has the potter made all the things?
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 |
Atoms or groups of atoms having a charge are called ______.
Complete the following table:
| S.No. | CELSIUS | KELVIN |
| 1. | 90°C | 363 K |
| 2. | ______ | 283 K |
| 3. | 63 °C | ______ |
| 4. | 250°C | ______ |
| 5. | ______ | 303 K |
Define the term matter.
