Which of the following properties is/are classified as chemical?
i.The taste of honey
ii.The ability of hair to stretch
iii.The corrosive character of hydrochloric acid
iv.The combustibility of ethanol
v.The softness of talc
A)i and ii
B)i, ii, and v
C)iii only
D)iv only
E)iii and iv

Question

Quizplus · Accepted Answer

The properties classified as chemical are those that involve a change in the chemical composition of a substance. In this regard, the corrosive character of hydrochloric acid and the combustibility of ethanol involve chemical reactions that change the identity of the substances involved. Therefore, iii and iv are chemical properties. The taste of honey, the ability of hair to stretch, and the softness of talc are all physical properties that do not involve a change in the chemical composition of the substance. Therefore, i, ii, and v are not classified as chemical properties.

Which of the Following Properties Is/are Classified as Chemical