Question

Assertion: Ethyl alcohol is soluble in organic solvents.
Reason: Ethyl alcohol has a non polar ethyl group.
A. Both Assertion and Reason are true and Reason is the correct explanation to Assertion.
B. Both Assertion and Reason are true and Reason is not the correct explanation to Assertion.
C. Assertion is true but Reason is false.
D. Assertion is false but Reason is true.

Answer 1

Hint: The solubility of any molecule in a solvent depends on a lot of factors and among them the most important one is the nature of the solute as polar or nonpolar. As we know that, the other name of ethyl alcohol is ethanol which has a molecular formula ${C_2}{H_5}OH$. It is a polar molecule due to the presence of hydroxyl groups in it.

Complete Step by step answer: As we know about some properties of ethanol that it contains two groups of different polarities. The alkyl group is a chain of one or more carbon atoms and some hydrogen atoms. This is a non-polar group of atoms. The other group is \[ - OH\], which is the polar end of the molecule.
The non-polar alkyl groups enable alcohols to interact with nonpolar organic molecules. And can also hydrogen bond with water. As the size of the alkyl group gets larger, alcohols becomes less soluble in water. Polar compounds are soluble in polar solvents and nonpolar in nonpolar solvents. Generally, organic compounds are nonpolar, so most of them are insoluble in water as water is a polar solvent. Even then, it dissolved in water it is because of one ionic bond at the end of the chain such as $ - OH$.
Therefore, we can say that ethyl alcohol is soluble in organic solvents because it has a non-polar ethyl group. So, the correct option is A that is Both Assertion and Reason are true and Reason is the correct explanation to Assertion.

Hence the correct option is A.

Note: Organic compounds mainly contain carbon and hydrogen. Hydrocarbon chain is hydrophobic in nature. Polar hydrocarbons dissolved in water due to the formation of hydrogen bonds with water.