Question

Which of the following metal is used in ornaments?
A. Silver
B. Gold
C. Sodium
D. Mercury

Answer 1

Metals are good at conducting heat, it can transfer heat very quickly and evenly.it can conduct electricity. The substances that exhibit this property of malleability are often metals. Metals which are malleable in nature, also exhibit the property of ductility, which means the ability of the material to be drawn into thin wires.

Complete step by step answer:
Among the given options silver and gold are used in ornaments. This is because silver and golds are so soft that they can be shaped easily. At the same time due to excessive shine of silver and gold they can be used as ornaments.

So, the correct options are A and B.

Additional information:
Most of the cooking vessels are made of metals. As cooking is a process that involves using heat, the vessel of cooking should be tolerant of rapid temperature changes. To be heat tolerant that material should have a very high melting point.
As metals are good at conducting heat, it can transfer heat very quickly and evenly. Generally, copper, aluminum metals are used for cooking vessels as they are very good conductors of heat.
When any copper and alloy of copper metal surfaces come in contact with acidic foods, the copper may be leached into the food.

Note: The property of malleability is often observed in the elements present in groups from 1 to 12 in the periodic table. Some examples of malleable metals are gold, iron, silver, etc. Even though malleability is a common characteristic feature of metals, it is not exhibited by all metals. Certain metals like zinc, arsenic, mercury, antimony are non – malleable in nature.