General Principles And Processes Of Isolation Of Elements Ques 13
13. Identify the alloy containing a non-metal as a constituent in it.
[2012]
(a) Invar is an alloy of iron and nickel with a very low coefficient of thermal expansion.
(b) Steel
(c) Bell metal
(d) Bronze
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Answer:
Correct Answer: 13.(b)
Solution:
- (b) Invar is a nickel iron alloy, Bell metal is an alloy of about $80 \%$ copper and $20 \%$ tin, Bronze is also an alloy of copper and tin.
Steel : It always has few $\%$ of carbon.
BETA
