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dk

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· 1 Months ago

about question no 63 Question id - 187095.0 (Question: 187095.0 )

hindi meaning of SOLDER is not COPPER
in this question hindi meaning is wrong

& also COPPER is not an alloy

Question:
Solder is an alloy of ______
Options:
A) tin and lead
B) tin and copper
C) tin, copper and zinc
D) tin, lead and zinc
Solution:
Ans: (a) Solder is an alloy of lead (70%) and tin (30%).  

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