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Q.

Why bronze is preferred over copper metal for making statues.


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a

It is more fusible

b

It is less fusible

c

Both 1 and 2

d

None 

answer is A.

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Detailed Solution

Concept- Metals combine to form an alloy. Alloys are made to increase strength or many physical properties such as ductility. Air and moisture can lead to metal corrosion. Alloying ensures corrosion resistance.
Now, bronze is made by combining copper and tin. Thus, the physical properties of bronze are-
●       It is harder than copper metal.
●       It is more malleable and ductile than copper metal.
●       It is resistant to corrosion.
●       Bronze is readily available and cheaper than copper metal.
Now, Sculptures are generally placed in an open environment, so they are exposed to atmospheric moisture. Because bronze is an alloy, it is resistant to corrosion. While copper can be corroded easily..
Due to ductility, bronze can be easily shaped into a sculpture, and due to its malleability, sculptures made of bronze can be easily transported without the worry of breaking the statue.
So, ductility (fusibility) and resistance to corrosion are the main reasons why bronze is offered over copper metal to make a sculpture.
Hence, the correct answer is 1.
 
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