Question

Brass is a mixture of

• A. 30% Cu and 70% Pb
• B. 70% Cu and 30% Zn
• C. 30% Cu and 70% Sn
• D. 70% Cu and 30% Pb

Answer 1

The correct option is B 70% Cu and 30% Zn

Brass is a mixture of copper (Cu) and zinc (Zn). It has a composition of approximately 30% zinc and 70% copper. It is used in the manufacture of locks, bearings, etc.
Hence, the correct answer is option (b).