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Which of the Following Do Not Exhibit Tyndall Effect ? Starch Solution, Sugar Solution, Ink, Salt Solution, Copper - Science

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प्रश्न

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.

टीपा लिहा

उत्तर

Sugar solution, salt solution, copper sulphate solution, and ammonium chloride solution do not show Tyndall effect because the particles in these solutions are too small to scatter light in different directions.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Is Matter Around Us Pure - Very Short Answers [पृष्ठ ८१]

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लखमीर सिंह Chemistry [English] Class 9
पाठ 2 Is Matter Around Us Pure
Very Short Answers | Q 45 | पृष्ठ ८१

व्हिडिओ ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्‍न

Select the correct alternative

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  3. solids
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Name a non-metal which is a good conductor of electricity.


What elements do the following compounds contain ?

Sugar, Common salt


What are pure substances ? Give two examples of pure substances.


The property/properties which enable copper metal to be used for making electric wires is/are :


A, B and C are all liquids. Liquid A has a comparatively low boiling point. On heating, liquid A vaporises completely without leaving behind any residue. Liquid A is being used increasingly as a fuel in motor vehicles either alone or by mixing with petrol. Liquid B has a very high boiling point. It also vaporises completely on heating, without leaving any residue. Liquid B is a conductor of electricity and used in making thermometers. Liquid C has a moderate boiling point. On heating, liquid C vaporises leaving behind a white solid D which is used in cooking vegetables. The condensation of vapours from C give a liquid E which turns anhydrous CuSO4 to blue.

(a) Which liquid could be an element ? Name this element.

(b) Which liquid could be a mixture ? Name this mixture.

(c) Which liquid could be a compound ? Name this compound.

(d) What could the solid D be ?

(e) What do you think is liquid E ?


What is the name of the clear liquid formed when a solid dissolves in a liquid ?


Fill in the following blank :

A colloid is a ..............mixture and its components can be separated by the technique known as ...............


Which of the following will show Tyndall effect ? Why ?

  1. Salt solution
  2. Starch solution
  3. Milk
  4. Copper sulphate solution

What do you understand by the statement " the solubility of copper sulphate in water at 20°C is 20.7 g" ?


What is a colloid ? Give two examples of colloids (or colloidal solutions)


How would you prepare a saturated solution of sodium chloride in water at 25°C ? What will happen if this  solution is cooled to 10°C ?


One of the following does not show Tyndall effect. This one is :


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Diffentiate between absorption and adsorption.


Liquids cannot be compressed and they have fixed volume.


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

Examples of foam are ______.


Evaporation is always accompanied by ______ in temperature. 


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