Question

Q6 Brass is a mixture of :
a) 30% Copper and 70% Zinc.
b) 45% Zinc and 55% Copper.
c) 30% Zinc and 70% Copper.
d) 50% Copper and 50% Zinc​

Answer 1

Answer:

answer is option C but correct answer is 66 percent copper and 34 percent zinc .

Answer 2

Brass is a mixture of b) 45% Zinc and 55% Copper.

What is Brass?

• It is an alloy of zinc and copper.
• It is a homogeneous mixture which is formed by reducing copper ore and zinc ore.
• It is referred as substitutional alloy because the two types of elements present in brass allows their atoms to replace each other within the single crystal.

What are properties of Brass?

• It has low melting point i.e. 900°C to 1000°C.
• Its density is 8.73 g/$cm{3}$.
• Brass is good conductor of heat.
• It is a soft metal.
• Its appearance is bright gold in colour.
• It exhibits low friction.
• Content of zinc in brass decides its malleability.

Applications of brass?

• As bullet casings.
• As decorative trims.
• In manufacturing of musical instruments, etc.