PU M 2026 Aliphatic Hydrocarbons Free Quiz 2

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PU M 2026 Aliphatic Hydrocarbons Free Quiz 2

PU M Quiz

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Navigator 7 Q

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General 7 MCQs

11. What type of reaction do alkynes undergo?

A. Substitution B. Elimination C. Addition D. Polymerization

12. What is formed when an alkyne undergoes hydrogenation?

A. Only alkane B. Only alkene C. Alcohol D. Alkene or alkane depending on H₂ amount

13. Which alkyne is used in oxy-acetylene welding?

A. Acetylene (ethyne) B. Methane C. Propane D. Butane

14. How are alkanes prepared?

A. Hydrogenation of alkenes/alkynes B. Oxidation C. Hydrolysis D. Fermentation

15. How are alkenes prepared?

A. Hydrogenation B. Dehydration of alcohols C. Oxidation D. Reduction

16. How does the reactivity of alkanes compare to alkenes?

A. More reactive B. Equally reactive C. Less reactive D. Unpredictable

17. How do branched-chain alkanes compare to straight-chain isomers in boiling point?

A. Lower boiling points B. Higher boiling points C. Equal boiling points D. Unpredictable

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