हिंदी

Copper Metal is Sonorous and an Excellent Conductor of Electricity

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प्रश्न

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

विकल्प

  • copper metal is malleable and ductile

  • copper metal is a good conductor of electricity

  • copper metal is ductile and has low electrical resistance

  • copper metal is sonorous and an excellent conductor of electricity

MCQ
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उत्तर

copper metal is ductile and has low electrical resistance

Copper is a good conductor of electricity. It means that it offers very low electric resistance. Also, it is highly ductile due to which it can be drawn into very thin wires.

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अध्याय 2: Is Matter Around Us Pure - Very Short Answers [पृष्ठ ५९]

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लखमीर सिंग Chemistry Part 2 [English] Class 9
अध्याय 2 Is Matter Around Us Pure
Very Short Answers | Q 65 | पृष्ठ ५९

वीडियो ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्न

Define matter.


Name the property which enables metals to be drawn into wires.


Name one element, one compound and one mixture.


The three important metalloids are.............................. and ..........................


Name a metal which is yellow in colour.


Which of the following does not have a fixed melting point/boiling point ?


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


There are three substances X, Y and Z. The substance X does not have a fixed melting point or boiling point and it still shows the individual properties of its constituents. The substance Y is a pure substance which occurs in nature as such. The substance Y has a fixed melting point and boiling point but it cannot be broken down into simpler substances by any chemical means. The substance Z is also a pure substance whose properties are entirely different from those of its constituents. The substance Z can, however, be divided by electrolysis into two substances which belong to the same class of substances as Y.

  1. What type of substance could X be ? Name one substance like X.
  2. What type of substance could Y be ? Name one substance like Y.
  3. What type of substance could Z be ? Name one substance like Z.
  4. Which process involves absorption or release of an appreciable amount of energy : formation of substance X or formation of substance Z ?
  5. Name the three groups into which all the substances like Y are divided on the basis of their properties.

What is the concentration of a solution which contains 16 g of urea in 120 g of solution ?


How will you differentiate between a suspension and a colloid ?


Which of the following will show Tyndall effect ? Why ?

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

Name the process which can be used to purify an impure sample of copper sulphate.


Explain how, nitrogen , oxygen and argon gases are separated from air.


Which of the following cannot be separated from air by the process of fractional distillation ?


Matter is made up of ______.


Diffentiate between absorption and adsorption.


You want to wear your favourite shirt to a party, but the problem is that it is still wet after a wash. What steps would you take to dry it faster?


Gases do not diffuse very easily.


Define the term matter.


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