Answer :
Answer: brittleness
Explanation:
Physical property is defined as the property of a substance which becomes evident during physical changes. Example: Melting point
1. Boiling point is the temperature at which vapour pressure of the liquid is equal to the atmospheric pressure.
2. pH is the measure of acidity or alkalinity of a solution.
pH is calculated by taking negative logarithm of hydrogen ion concentration. Acids have pH ranging from 1 to 6.9, bases have pH ranging from 7.1 to 14 and neutral solutions have pH equal to 7.
[tex]pH=-\log [H^+][/tex]
3. Brittleness is the tendency of a material to break upon the application of a relatively small amount of force, impact, or shock.
Thus brittleness does not identify a substance.
Answer:
Brittleness
Explanation:
The boiling point represents the temperature at which a substance changes from liquid to gaseous state at a given pressure.
Several studies are made using boiling point as a substance determination technique. For example, water has a boiling point of 100 ° C (or 212 ° F), while ethanol has a boiling point of approximately 78.3 ° C (or 172.94 ° F).
pH is the acronym used for hydrogen potential, it refers to the concentration of hydrogen ions (H⁺) in a solution, and this scale ranges from 0 to 14. Therefore, pH is important in determining whether a substance is acid (pH < 7), neutral (pH = 7) or alkaline (pH > 7).
Brittleness, in turn, indicates the ease of an object to deform or lose its original state. This property, however, is not able to determine substances.
Given these statements, it is concluded that only brittleness is not able to identify substances.
