SSC Selection Post 2020 PYQ — Question 49

SSC Selection Post - Matriculation Level 2020 - 6 Nov 2020 - Shift 1 • General Awareness • Q49

How many oxygen atoms are there in one molecule of ethyl alcohol?

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. 1.

One molecule of ethyl alcohol, also known as ethanol, has the chemical formula C₂H₅OH. In this structure, there is only one oxygen atom present. This oxygen is part of the hydroxyl group (-OH) that defines the alcohol family of organic compounds. Ethanol consists of two carbon atoms, six hydrogen atoms, and one oxygen atom. It is a widely used solvent, fuel additive, and is the active ingredient in alcoholic beverages consumed globally.