Which of the following is a physical property commonly associated with metals?

• A. Tendency to form acidic oxides
• B. Ability to undergo combustion
• C. High electrical conductivity
• D. Low melting points

Answer: (C)

Verified step by step guidance

1. Understand what a physical property is: a characteristic of a substance that can be observed or measured without changing its chemical identity.
2. Recall common physical properties of metals, such as high electrical conductivity, malleability, ductility, and high melting points.
3. Analyze each option: 'Tendency to form acidic oxides' is a chemical property because it involves chemical reactions and changes in composition.
4. 'Ability to undergo combustion' is also a chemical property since it involves reacting with oxygen to form new substances.
5. 'High electrical conductivity' is a physical property because it describes how well a metal can conduct electricity without changing its chemical structure.
6. 'Low melting points' is generally not true for metals, as most metals have relatively high melting points, so this is not a typical physical property of metals.