Non-Metals - GS questions based on daily current affairs

1)   Which of the following statements is/are correct about non metal?

1. Most non metals are good conductors of heat and electricity.
2. Diamond is the hardest natural substance on Earth, but it is also very brittle and will shatter if hit with a hammer.

a. Only 1
b. Only 2
c. Both
d. None
Answer  Explanation 

ANSWER: Only 1

Explanation:
- Most non metals are poor conductors of heat and electricity.
- Graphite is unusual because it is a non-metal that conducts electricity.
Oxygen, carbon, sulphur and chlorine are examples of non-metal elements.
- Eleven non-metals are gases at room temperature, including oxygen and chlorine.
- One non-metal, bromine, is a liquid at room temperature.
- The other non-metals are solids at room temperature, including carbon and sulphur.

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