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Q.

22 Carat gold is

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a

20 parts pure gold +  2parts silver

b

22parts pure gold  + 2parts silver

c

22 parts pure gold + 2parts copper

d

Both B and C

answer is D.

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Detailed Solution

Alloy  is homogeneous mixture  of two or more metals.

Pure  gold  is Known  as  24 carat  gold .So it is not  suitable  making  jewllery, it  is  Alloyed  silver  or  Copper.

22Carat  gold  pure gold is  alloyed  with  2parts  of silver or Copper

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