Advertisements
Advertisements
Question
Generally, non-metals are not conductors of electricity. Which of the following is a good conductor of electricity?
Options
Diamond
Graphite
Sulphur
Fullerene
Solution
Graphite
Explanation -
Out of the given options, only graphite is a good conductor of electricity due to the presence of free electrons.
APPEARS IN
RELATED QUESTIONS
Answer the following question.
List in tabular from three chemical properties on the basis of which we can differentiate between a metal and a non-metal.
The electronic configurations of three elements X, Y and Z are X - 2, 8; Y - 2, 8, 7 and Z - 2, 8, 2. Which of the following is correct?
What happens when calcium is treated with water?
- It does not react with water
- It reacts violently with water
- It reacts less violently with water
- Bubbles of hydrogen gas formed stick to the surface of calcium
Galvanisation is a method of protecting iron from rusting by coating with a thin layer of
Which of the following can undergo a chemical reaction?
A non-metal X exists in two different forms Y and Z. Y is the hardest natural substance, whereas Z is a good conductor of electricity. Identify X, Y and Z.
Generally metallic oxides are basic and non-metallic oxides are acidic in nature. Solution of which of the following oxides in water will change the colour of blue litmus to red?
Which non-metal is used to disinfect water?
A purple coloured non-metal forms a brown solution in alcohol which is applied on wounds as an antiseptic. Name the non-metal.