INDIAN GEOGRAPHY

MINERAL AND ENERGY RESOURCES IN INDIA

MINERALS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How is brass made
A
Mixing Copper with Zinc
B
Mixing Lead with Gold
C
Mixing Limestone with Mica
D
Mixing Silver with Uranium
Explanation: 

Detailed explanation-1: -Brass is an alloy created by mixing copper and zinc, the proportions are adjusted to create different brass applications and uses. Basic brass is 33% zinc with 67% copper but these levels can vary considerably. Lead is sometimes added to improve machinability.

Detailed explanation-2: -Scientific Principles: In order to save expensive copper, penny coins, starting in 1983, were made of zinc with a thin layer of copper plated on the surface. If these coins are heated, the zinc will diffuse into the copper layer, producing a surface alloy of zinc and copper. These alloys are brasses.

Detailed explanation-3: -It turns out zinc and copper, when heated at a high temperature, fuse to make an alloy, brass, that is golden in color.

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