Question

Brass is a mixture of:
(This question has multiple correct options)
A. Copper
B. Zinc
C. Tin
D. Lead

Answer 1

Hint: We know that brass is a mixture not a chemical compound. And brass is a homogeneous mixture. Brass is an alloy, and either a "solid solution".

Complete-step- by- step answer:
i) Brass alloy is also commonly used in electronic devices like watches because they are non-magnetic. Metal Associates can fulfill its customer's brass needs from brass plates to brass round, flat and square wire.
ii) Brass is a mixture of copper and zinc, which has a harder finish than copper alone. Brass is a homogeneous mixture. It's made when copper and zinc are mixed. It's called a homogeneous mixture because it looks the same throughout.
iii) Chemical formula of brass: \[C{{u}_{3}}Z{{n}_{2}}\] and molecular weight is 321.42 gm. And composition of brass can be: Zinc 40.69 % Zn and Copper 59.31 % Cu.
iv) It's a mixture of copper and zinc, not a chemical compound. The proof of this is that if we leave brass, for example a cartridge case, in a corrosive environment like salt water for a long time, the zinc will dissolve out and leave a very thin and brittle copper shell.

So, the correct option is “A” and “B”.

Note: Brass is an intermetallic compound, depending on the amount of copper and zinc. Varying mixtures produce a wide range of properties and variation in color. And this alloy is used in electrical devices.