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The exact composition of Brass is ________
Options
A.Cu = 80 %, Zn = 20 %
B.Cu = 90 %, Zn = 10 %
C.Cu = 80 %, Sn = 20 %
D.Cu = 80 %, Zn = 10 %, Sn = 10 %

Answer
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Hint: An alloy is a material made up of two or more metals mixed together. Combinations of metals and other materials may also be used to create alloys. A homogeneous mixture of two or more metals, or a metal and a nonmetal, may be known as an alloy.

Complete answer:
An alloy is a material made up of two or more metals mixed together. Combinations of metals and other materials may also be used to create alloys. A homogeneous mixture of two or more metals, or a metal and a nonmetal, may be known as an alloy.
Copper and zinc are used to make brass. Brass is sturdy and durable due to the combination of these metals. Brass is used for the door knobs and high-quality locks. Cu (80%) and Zn (20%) are the two most important components of brass. However, trace quantities of Al, Ni, and Mn, as well as minor amounts of Sn (0-6 %) and Pb (0-2 %), Fe (0-1 %), and sometimes traces of Al, Ni, and Mn, can be present.
Brass is a copper-zinc alloy with a high copper-to-zinc ratio. The proportions of copper and zinc are varied to produce a variety of brasses. Modern brass is composed of 67 percent copper and 33 percent zinc. Copper concentrations will range from 55 percent to 95 percent by weight, with zinc concentrations ranging from 5 percent to 45 percent. Lead is often applied to brass at a concentration of around 2%. The addition of lead to brass increases its machinability. Also in brass with a comparatively low average content of lead, substantial lead leaching happens often. Musical instruments, pistol bullet casings, radiators, architectural trim, pipes and tubes, screws, and decorative pieces are all made of brass.

Note:
Copper and zinc are used to make brass. Brass is sturdy and durable due to the combination of these metals. Brass is used for the door knobs and high-quality locks. Cu (80%) and Zn (20%) are the two most important components of brass. However, trace quantities of Al, Ni, and Mn, as well as minor amounts of Sn (0-6 %) and Pb (0-2 %), Fe (0-1 %), and sometimes traces of Al, Ni, and Mn, can be present.