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Solution


Q.

Of these, the most ductile metal is _______.
1 Al  
2 Au  
3 Cu  
4 Ag  

Ans.

(2)

Ductility is the property by which metals can be drawn into long thin wires without breaking. Gold, silver and platinum are often drawn into long stands for use in jewellery. However, gold has a significantly greater ductility than platinum and it is considered as the earth’s most ductile metals as one ounce of gold could be drawn to a length of 50 miles.