Q:
      
      
         
            
Rupee 5 and 10 coins are now made of
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: C) Cupro nickel alloy         
         
Explanation: The copper nickel alloys composed of copper with 25% nickel with 0.05-0.4% manganese is commonly used for the manufacture of coins, medals and other semi valuable applications.
 
       
      
      
      
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