AIIMS 2018 Chemistry Properties of Gases Assertion Reason Question
Assertion: The surface tension of water is more than other liquid.
Reason: Water molecules have strong inter molecular H- bonding as attractive force.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
Option A is correct because both the assertion that O₃ has a higher boiling point than O₂ and the reason that O₃ is an allotrope of oxygen are true statements. However, the reason does not explain why O₃ has a higher boiling point; the difference in boiling points is primarily due to the molecular structure and intermolecular forces, not merely its allotropy. Other options are incorrect because they either misrepresent the truth of the statements or incorrectly assert a causal relationship between the two, which is not supported by the scientific principles governing boiling points and allotropy.
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