"925 fine silver" means an alloy of, 7.5% Ag and 92.5% Cu, 92.5% Ag and 7.5% Cu, 80% Ag and 20% Cu, 90% Ag and 10% Cu

"925 fine silver" means an alloy of

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"925 fine silver" means an alloy of

Chemistryd and f Block ElementsVITEEEVITEEE 2011

Options:

A $7.5 \% \mathrm{Ag}$ and $92.5 \% \mathrm{Cu}$
B $92.5 \% \mathrm{Ag}$ and $7.5 \% \mathrm{Cu}$
C $80 \% \mathrm{Ag}$ and $20 \% \mathrm{Cu}$
D $90 \% \mathrm{Ag}$ and $10 \% \mathrm{Cu}$

Solution:

2441 Upvotes Verified Answer

The correct answer is: $92.5 \% \mathrm{Ag}$ and $7.5 \% \mathrm{Cu}$

" 925 fine silver" means 925 parts of pure Ag in 1000 parts of an alloy. Therefore, in terms of percentage, it will be $92.5 \% \mathrm{Ag}$ and $7.5 \% \mathrm{Cu}$.

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