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Q.

Which one of the following is the most correct statement?

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a

Brass is an interstitial alloy, while steel is a substitutional alloy

b

Brass and steel are both substitutional alloys

c

Brass is a substitutional alloy, while steel is an interstitial alloy

d

Brass and steel are both interstitial alloys

answer is C.

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Detailed Solution

Brass, Cu=80%, Zn=20% substitutional alloy. Atoms of one metal substituted by other metal by equivalent size.

Steel is an  interstitial alloy, in which small atoms trapping into holes of  crystal lattice.

 

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