Question

An element X is having high melting point, it can be drawn in wire or can be converted into thin sheets. Also, it have shiny appearance as well as electric current can easily pass through it. X is most likely to be a ______
1. metal
2. non - metal
3. semi metal
4. can't say

Answer 1

Correct Answer - Option 1 : metal

Concept:

Physical Properties	Metals	Non - Metals
Electrical Conductivity	Metals are good conductors of electricity.	Non -Metals are poor conductors of electricity.
Sonorous	Metals are sonorous which means the ringing sound is produced when they are hit.	Non -metals are non-sonorous.
Malleability	Metals can be converted into thin sheets and hence are malleable.	Non - metals cannot be converted into thin sheets and hence are non Malleable.
Ductility	Metals can be drawn into thin wires.	Non -metals cannot be drawn into thin wires and hence are non - ductile.
High melting and Boling point	Metals have high melting and boiling point. They are usually solid at room temperature.	Non - metals are having low melting points and boiling points. They can be solid, liquid, or gas at room temperature.
Lustrous Appearance	They have a shiny appearance.	They have dull appearance.

 

Explanation:

• The physical properties of X include ductility, malleability, and high melting point. 
• Apart from it is having a lustrous appearance and it conducts electricity. 
• These all are properties of metal and hence X is most likely to be a metal.

 

Few Important Exceptions of physical properties of metals and Non - metal. includes 

• Diamond is having high melting and boiling point is true. Also, it is one of the hardest known substances. 
• Iodine is having a lustrous and shiny appearance though it is non - metal.
• Graphite is good conductor of electricity but it is soft as non - metal.
• Gallium Metal has low melting point.
• Mercury is metal but liquid at room temperature.