AIIMS 2019 Chemistry Sulfur Compounds MCQ Question
Oleum is manufactured by adsorption of sulphur trioxide in concentrated sulphuric acid. The reaction is as follows: H₂SO₄ (l) + SO₃ (g) → H₂S₂O₇ (oleum) The structure of oleum is shown below:
Correct Answer
Detailed Explanation
Option B correctly represents the structure of oleum (H₂S₂O₇), which consists of two sulfuric acid (H₂SO₄) molecules with an additional sulfur trioxide (SO₃) unit. This structure highlights the presence of the disulfide bond, indicating the combination of sulfur trioxide with concentrated sulfuric acid. Other options are incorrect as they do not accurately depict the molecular structure or fail to represent the unique characteristics of oleum, such as the presence of the extra sulfur atom. Understanding oleum's structure is crucial for grasping its properties and applications in industrial processes.
Found an issue with this question?
Related Questions
More from 2019
A chemical reaction : A + B ⟶ AB, B is acting as limiting reagent then choose the correct option. The limiting reagent is:
Variations caused by mutation, as proposed by Hugo de Vries, are:
In case of paper chromatography, there are both stationary and dynamic phases present. So, the statement that it is a stationary phase is incorrect.