Question

Which formula represents an electrolyte?
(1) CH3OCH3 (3) CH3COOH
(2) CH3OH (4) C2H5CHO

Answer 1

(3) CH3COOH is the correct answer.

CH3COOH is a weak electrolyte. When being put in water, it separates into CH3COO- and H+, then the ions combine to form again CH3COOH. The process takes place back and forth.

Hope this would help~

Answer 2

Answer: The correct answer is Option 3.

Explanation:

Electrolyte is defined as a substance which dissociates into its ions in a solution and has a capacity to conduct electricity.

From the given options:

Option 1:  $CH_3OCH_3$

This compound belongs to ether group and it does not form ions when present in a solution. Thus, it is not considered as an electrolyte.

Option 2:  $CH_3OH$

This compound is an alcohol and it dissociates into its ion but the ions formed are not stable. Hence, it is not considered as an electrolyte.

Option 3: $CH_3COOH$

This compound is a carboxylic acid and it dissociates into its ion. The ions formed or the conjugate base formed are stable. Hence, it is considered as an electrolyte.

$CH_3COOH\rightarrow CH_3COO^-+H^+$

Option 4:  $C_2H_5CHO$

This compound is an aldehyde and it does not form ions when present in a solution. Thus, it is not considered as an electrolyte.

From the above information, the correct answer is Option 3.