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Q.

Silver UK coins are made up with an alloy

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a

 Au, Ag

b

 Ni, Cd 

c

Cu, Fe 

d

 Cu, Ni 

answer is C.

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Detailed Solution

The three most common alloys used in coin production are

  • Nickel-brass (mostly copper with zinc and nickel)
  • Cupronickel (primarily copper with nickel)
  • Bronze (mainly copper, with zinc and tin). 
  • Copper and its alloys are easily formed into coins and have a high corrosion resistance. 
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Silver UK coins are made up with an alloy