Physical Property of Metal - Ductility
Physical Property of Metal - Ductility:and Malleability
Most metals can be beaten into thin sheets or foils. The property by virtue of which metals can be beaten into thin sheets is called malleability. Gold and Silver are the most malleable metals known. Silver foils are used for decorating sweets. Aluminium foils are used for wrapping food and chocolates.
Ductility of Metals
: most metals can easily be drawn into thin wires, which have a wide range of applications. The property by virtue of which metals can be drawn into thin wires is called ductility. All the metals are not equally ductile. Gold and silver are among the most ductile metals. It is estimated that 100 mg of silver can be drawn into a wire of about 200 metres in length. A gold piece of the size of a 50-paisa can be stretched into a 10-km-long wire. Because of its ductile nature, copper is used in electrical wires.
Gold and silver are two of the best ductile metals known. Copper and Aluminium are also drawn into wire and used in electrical wiring.
Which of the following are correct : (a) Gold and Silver are the most malleable metals known. (b) Silver foils are used for decorating sweets. (c) Aluminium foils are used for wrapping food and chocolates. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct : (a) The property by virtue of which metals can be beaten into thin sheets is called malleability. (b) The property by virtue of which metals can be can be drawn (or stretched) into thin wires is called ductility. (c) The property by virtue of which metals can be beaten into thin sheets is called ductility. | |||
| Right Option : A | |||
| View Explanation | |||
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