Question

Brass is a solution of molten copper in
(A) solid zinc
(B) molten zinc
(C) gaseous zinc
(D) molten tin.

Answer 1

Hint: Brass is an example of alloy. An Alloy is a metallic solution that consists of elements mixed in different proportions. It is produced by melting the ingredients of the mixture. Some examples of Alloys are Bronze, steel, pewter, brass, phosphor bronze, etc. The alloys are defined using their metallic bond character.

Complete answer:
Brass is a solution of the molten copper in molten zinc. Brass may contain some other elements also like Lead, Iron, Aluminium, Silicon, manganese, etc. to produce different properties and color variations. For example, the addition of lead makes brass softer and malleable. There are various types of brass-330 brass, red brass, 464 brass, etc. The basic brass consists of approximately 67% of molten copper and 33% of molten zinc. Increased amount of zinc is present to improve its strength and ductility.
So option (B) is correct.

Additional information:
Some properties of Brass are as follows-
(A) Brass has high malleability as compared to either copper or zinc.
(B) Brass is a good conductor of heat and electricity.
(C) It has a low melting point.
(D) When exposed to ammonia, it causes stress cracking.
(E) It has high corrosion resistance so no plating or painting is required.
(F) It has high tensile strength.
(G) Brass has excellent Machinability. It is the ability of brass to be moulded easily and then later reactions useful in industries.
(H) Brass can have variable colors depending on its composition but generally have a gold-like appearance.
(I) Brass is non-ferromagnetic.

Note:
Brass has several applications, it is used in nuts, bolts, taps, tubing, plumbing pipes, and electronic devices due to high electrical conductivity. Due to its golden appearance, it has decorative applications. It is used in musical instruments like guitar strings as a result of its workability and durability.