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Match List-I with List-II and select the correct answer using the codes given below: List-I  (Metal) List-II (Colour)  (a) Brass  (i) reddish-brown   (b) Copper  (ii) metallic brown  (c) Bronze  (iii) yellowish 

Match List-I with List-II and select the correct answer using the codes given below: List-I  (Metal) List-II (Colour)  (a) Brass  (i) reddish-brown   (b) Copper  (ii) metallic brown  (c) Bronze  (iii) yellowish  Correct Answer (a) - (iii), (b) - (i), (c) -(ii)

Concept:

  • A metal is generally a hard solid substance that conducts heat and electricity.
  • They have a shiny lustre.
  • They being ductile can be drawn into wire.
  • Silver is the best conductor of heat.
  • Alloy is a substance formed from the combination of two or more metals or from metals and other elements.

Explanation:

  • Brass is an alloy of copper and zinc.
  • Bell-metal is a mixture of copper and tin.
  • There are some utensils like tumblers, plates, bowls of bronze there in our house.
  • Goods made up of copper, brass, and bronze can be differentiated by their colours as follows: 

Metal

 Description

Brass
  • Brass is a mixture of Copper and Zinc.
  • Brass has higher malleability than bronze or zinc and almost 90% of all brass is recycled.
  • Its colour varies from red to yellowish-brown depending upon the amount of zinc added to the alloy.
  • It has a low melting point, durability, electrical and thermal conductivity which makes it an alloy of diverse uses.
  • Colour: Yellowish

Copper
  • Copper is a reddish-brown metal that has excellent conducting properties and ductility.
  • As copper is ductile, It is used to make thin wires.
  • Copper wiring is thus used in all electrical appliances.
  • Copper is also shiny or lustrous in appearance and sonorous.
  • It is also used in a number of alloys to obtain desirable properties.
  • It is also used to make coins, bells etc.
  • Copper is also used in roofing or plumbing.

Bronze
  • Bronze is a metal, like aluminium, iron and copper.
  • It is metallic brown in colour.
  • It is made by melting copper and tin in a furnace.
  • It is not a good conductor of electricity.
  • Bronze is heavier than aluminium.
  • Tribal people have been using bronze to make many things for thousands of years like tools, utensils, statues, figurines etc.
  • It is also used to make big guns (cannons) found in the fort of Golconda.

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Thus, the correct match is (a) - (iii), (b) - (i), (c) -(ii)

List-I  (Metal) List-II (Colour)
 (a) Brass  (iii) yellowish  
 (b) Copper  (i) metallic brown 
 (c) Bronze  ​(ii) shiny grey

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