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Which of statements are True? (i) Octane number increases with chain length. (ii) Cycloalkanes have higher Octane number than straight chain alkanes. (iii) Alkenes and aromatic hydrocarbon have higher Octane number than straight chain alkanes. (iv) Branched chain alkanes have lower octane number than straight chain alkanes.
Correct Answer: (c)
Official keyThis question appeared in the TNPSC Prelims 2025 examination (GS). It is Question 1 out of 200 questions in this paper.
This question was part of the TNPSC Prelims 2025 (GS). The TNPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all TNPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.