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Question

The metals tin and zinc are present in the alloy


A

Solder

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B

bronze

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C

brass

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D

duralumin

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Solution

The correct option is A

Solder


Solder in commercial use contains tin, copper, silver, bismuth, indium, zinc, antimony, and traces of other metals. Bronze is an alloy consisting primarily of copper, commonly with about 12% tin and often with the addition of other metals (such as aluminum, manganese, nickel or zinc) and sometimes non-metals or metalloids such as arsenic, phosphorus or silicon. Brass is an alloy of copper and zinc, in proportions which can be varied to achieve varying mechanical and electrical properties. Duralumin is an alloy, a trade name given to the earliest types of aluminum alloys. It is an alloy made up of 90% aluminum,4% copper, 1% magnesium and 0.5% to 1% manganese. It is a very hard alloy.


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