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Questions and Answers
What is 24 carat gold known for?
What is 24 carat gold known for?
- Being alloyed with silver or copper
- Having high electrical conductivity
- Being suitable for making jewellery
- Being very soft (correct)
What is 22 carat gold commonly used for in India?
What is 22 carat gold commonly used for in India?
- Alloying with mercury
- Making ornaments (correct)
- Having high melting point
- Making electrical circuits
What happens when one of the metals alloyed with gold is mercury?
What happens when one of the metals alloyed with gold is mercury?
- The melting point decreases
- The electrical conductivity increases
- The alloy becomes harder
- The alloy becomes an amalgam (correct)
What is the electrical conductivity of brass and bronze compared to copper?
What is the electrical conductivity of brass and bronze compared to copper?
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What is solder commonly used for?
What is solder commonly used for?
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