Which is a chemical property of vinegar? the ph of vinegar is around 2.4. vinegar freezes at around 2°c. vinegar boils at about 100°c. the color of vinegar ranges from colorless to brown. vinegar is a transparent liquid.

Option (a) is the correct answer.

Explanation:

A property that depicts change in chemical composition of a substance is known as a chemical property.

For example, reactivity, toxicity, combustion etc are all chemical properties.

The pH of vinegar is around 2.4 this means that vinegar is acidic in nature. This shows reactivity of vinegar as it is being acidic in nature.  

On the other hand, a property that does not bring any change in chemical composition of a substance is known as a physical property.

For example, boiling point, melting point, density etc are all physical properties.

Thus, we can conclude that the pH of vinegar is around 2.4 is a chemical property of vinegar.

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.