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प्रश्न
Fill in the following blanks with suitable words :
A heterogeneous mixture of liquid and solid is conveniently separated by...............
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उत्तर
A heterogeneous mixture of liquid and solid is conveniently separated by centrifugation.
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संबंधित प्रश्न
The molecules can move freely anywhere in
Gases have definite volume but no definite shape.
Name the terms for the change of vapour into a liquid.
The property/properties which enable copper metal to be used for making electric wires is/are :
Which of the following contains less solute at a given temperature and pressure ? Unsaturated solution or Saturated solution.
Define solvent.
Which of the following are chemical changes and which physical ? Give reason.
- a glass bottle breaking
- coal burning in air
- making a cake
- wool being knitted into a sweater
What is meant by a solution?
One of the following does not show Tyndall effect. This one is :
The solubility of ammonium chloride in water at various temperatures is given below :
| Temperature | : | 10°C | 20°C | 40°C | 60°C | 80°C |
| Solubility | : | 24 g | 37 g | 41 g | 55 g | 66 g |
What mass of ammonium chloride would be needed to make a saturated solution of ammonium chloride in fifty grams of water at 40°C ?
Name the process which can be used to recover salt from an aqueous salt solution.
Fill in the following blanks with suitable words :
If a mixture contains iron filings as one of the constituents, it can be separated by using a .......................
How will you separate camphor, common salt and iron nails from their mixture ?
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.
How is water purified on a large scale at water works ? Explain with the help of a labelled diagram. Name the substance which is added to kill germs in the drinking water supply ?
The material which is added to water during purification process at the water works so as to disinfect it is :
Name one pair of liquids which can be separated by using a separating funnel.
Define the term matter.
State whether true or false. If false, correct the statement.
Oil and water are immiscible with each other.
Define the term matter.
