Question

In A Science Quiz Competition, You Are Asked A Question Where You Have To Choose The Statement Which Is/ Are Incorrect?
a. Most of the metals are ductile.
d. As a non metal graphite is a good condictor of electricity
b. Metals are generally good conductors of heat and electricity.
c. Sulphur and phosphorus are solid metals which are non-malleable and non-ductile.​

Answer 1

Correct statement out of the following

Explanation:

• Statement a is correct as it is the property of metals that they are ductile in nature as they can be drawn into thin wires easily because they are hard. So, this statement is correct.
• Statement d is correct i.e. graphite being a non metal conduct electricity. Non metals are poor conductor of electricity but graphite do so because graphite has free electron in it which makes it possible to conduct electricity. Therefore, this statement is also correct.
• Statement b is also correct i.e. metals are very good conductor of heat and electricity because they are consist of ions which are free to move therefore, these ions are responsible for the conduction of heat and electricity. So, statement b is correct.
• Statement c is incorrect. Sulphur and phosphorous are not metals instead they are non metals. Non metals are not ductile and not malleable as they are soft in nature and cannot be drawn into wires and this sheets. So, statement c is incorrect.

Option(c) is incorrect.