Question

Rank from most conductive to least conductive: AlCl3, C6H12O6, KBr, C3H7OOH ??

Answer 1

The substances ranked from most conductive to least conductive are KBr, AlCl3, C6H12O6, and C3H7OOH, based on their ability to form ions in solution. KBr and AlCl3 are ionic and thus more conductive, while C6H12O6 and C3H7OOH are covalent and less conductive.

Step-by-step explanation:

To rank the substances from most conductive to least conductive: AlCl3, C6H12O6, KBr, C3H7OOH, we evaluate their ability to conduct electricity based on their ionic or covalent nature and their state at room temperature. Ionic compounds such as AlCl3 and KBr, when dissolved in water, dissociate into ions, making them good conductors of electricity. Organic compounds such as C6H12O6 (glucose) and especially C3H7OOH (isopropyl alcohol), which are covalent, do not dissociate into ions in solution and are thus poor conductors.

Therefore, the ranking from most conductive to least conductive is

1. KBr (Potassium bromide - ionic, dissolves in water to form ions)
2. AlCl3 (Aluminum chloride - ionic, dissolves in water to form ions)
3. C6H12O6 (Glucose - covalent, some ions in solution due to its molecular structure but still a poor conductor)
4. C3H7OOH (Isopropyl alcohol - covalent, very few ions, if any, and thus the least conductive)

Answer 2

The order is:

AlCl₃ > KBr > C₃H₇COOH > C₆H₁₂O₆

Step-by-step explanation:

A compound is conducting in nature (in soluble form) if it is ionic.

More the ions produced by a compound more the conductive the compound is.

In the given compounds C₆H₁₂O₆ is non electrolytic or non ionic. It will dissolve in water and will not furnish any ion thus it will be non conducting (least)

C₃H₇COOH: It is a weak electrolyte and will dissociate very less in water and thus it will be conducting but less than a strong elecrolyte.

KBr and AlCl₃ both are ionic and will dissociate completely however AlCl₃ will produce four ions while KBr will give only two ions per molecule.

Hence AlCl₃ is more conducting

The order is:

AlCl₃ > KBr > C₃H₇COOH > C₆H₁₂O₆