Question

Which of the following statements is true?
1. All non-metals are gases
2. All non-metals are non-ductile
3. All metals are solids
4. All metals are hard

Answer 1

Correct Answer - Option 2 : All non-metals are non-ductile

Explanation:

• Nonmetals exist in all three states of matter.
• The majority are gases, such as nitrogen and oxygen.
• Bromine is a liquid.
• A few are solids, such as carbon and sulfur.
• Metals are lustrous, malleable, ductile, good conductors of heat and electricity.
• Other properties include state: Metals are solids at room temperature with the exception of mercury, which is liquid at room temperature (Gallium is liquid on hot days).
• All metals are hard except sodium and potassium, which are soft and can be cut with a knife. 
• Non-metals are not ductile because they are brittle elements.

So, "All non-metals are non-ductile" is a true statement.