The measurable properties are said to be the physical property of the substance. The conductivity of heat and the sweet odor are physical properties. Thus, options 1. a and 2. a is correct.
Physical properties are the characteristics of the substance that can be measured and observed directly. There is only change in the phases of matter involved.
The alterations in the chemical compositions and reactivity are not characteristic of the physical properties. It does not occur or requires a chemical reaction.
The copper conducting heat and the sweet smell of alcohol are physical properties as conductivity and odor are the physical traits along with malleability, hardness, solubility, etc.
Therefore, the conductivity of copper and sweet smell are physical properties.
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