Question

Which of the following is not an electrolyte?
Options-
A.Acetic acid
B.Glucose
C.Ethanol
D.urea

Answer 1

Electrolytes are the substance or compounds which have capability to allow the electric current to pass through to them when they exist either in molten state or in aqueous state. The inherent property of electrolyte to conduct electricity is due to chemical decomposition of them in solution.

Complete answer:
Electrolyte must have property to dissociate into their constituents in aqueous state. These generated constituents are oppositely charged ions which further carried out the process of current conduction.
When we add acetic acid in water it has a tendency to chemical decomposition to generate acetate ions and hydronium ions. Due to generation of these two different ions in solution acetic acid conducts the electricity and is considered as an electrolyte.
$C{H_3}COO{H_{\left( {aq} \right)}} \to CHCO{O^ - }_{\left( {aq} \right)} + {H^ + }_{\left( {aq} \right)}$
When we add glucose in water it does not generate any ions in the solution and due to absence of any ions which are capable of conducting electric current, glucose is considered as non-electrolyte.
${C_6}{H_{12}}{O_{6\left( {aq} \right)}} \to {C_6}{H_{12}}{O_{6\left( {aq} \right)}}$
When ethanol/ alcohol is mixed with water it does not undergo any chemical decomposition to generate ions. Ethanol does not get ionized in the presence of water and therefore does not conduct electricity. Hence, ethanol is considered as an example of non-electrolyte.
${C_2}{H_5}O{H_{\left( {aq} \right)}} \to {C_2}{H_5}O{H_{\left( {aq} \right)}}$
When we dissolve urea in water it does not get ionized to generate its constituent’s ion because it is an organic compound which does not dissociate to generate ions. Therefore, urea is an example of non-electrolyte.
$N{H_2}CON{H_{2\left( {aq} \right)}} \to N{H_2}CON{H_{2\left( {aq} \right)}}$
$\Rightarrow$ Glucose, Ethanol and Urea are examples of non-electrolyte.

A,B,C are the correct answers

Note:
Non-electrolytes are the substances which do not have the capability to conduct the electricity either in molten state or in aqueous state. Some examples of Non-electrolytes are sugar, ethyl alcohol. Non electrolytes are generally held together by covalent bonding rather than ionic bonding.