GK
GENERAL SCIENCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
How can non metals be described?
|
|
Solid at room temperature
|
|
|
Good conductors of electricity
|
|
|
Dull
|
|
|
Shiny
|
Explanation:
Detailed explanation-1: -Non-metals vary greatly in appearance. They do not have lustre. As it does not have any free electrons light falling on non-metals does not reflect and hence non-metals are not shiny. Hence, they have a very dull appearance.
Detailed explanation-2: -Luster: Objects made of nonmetals are usually dull in their appearance. Some examples are solid sulfur and carbon nuggets. Malleability: Nonmetals are usually more brittle than metals-they cannot be molded or stretched like metals can.
Detailed explanation-3: -Coal is made of carbon, which is a non-metal. Non-metals have a dull appearance . They are not shiny as metals. Hence, coal has a dull appearance.
There is 1 question to complete.