This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 11 Alcohols – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Secondary alcohols can be oxidized to yield A) RCHO. B) RCOR. C) RCOOR. D) ROR. Show Answer Correct Answer: B) RCOR. 2. (9.3) How do you name an epoxide substituent? A) Epoxy. B) Epoxane. C) Epoxide. D) Epoxene. Show Answer Correct Answer: A) Epoxy. 3. Which statement about the reaction of 1-bromobutane and NH$_{3}$ is incorrect? A) The reaction may lead to the formation of a quaternary ammonium salt. B) The reaction initially gives a primary amine. C) The reaction is a nucleophilic substitution. D) The reaction specifically gives a primary amine. Show Answer Correct Answer: D) The reaction specifically gives a primary amine. 4. What does the presence of a benzene ring do to the O-H bond in terms of phenols? A) Strengthens. B) No effect. C) Weakens. D) Converts. Show Answer Correct Answer: C) Weakens. 5. What is the name of this reagent [CrO$_{3}$.2C$_{5}$H$_{5}$N]? A) Corey's Reagent. B) Collin's Reagent. C) Jones Reagent. D) Lucas Reagent. Show Answer Correct Answer: B) Collin's Reagent. 6. Which of the following is strongest acid? A) CH3OH. B) CH3CH2OH. C) CH3CH2CH2OH. D) (CH3)$_{2}$CH$_{2}$OH. Show Answer Correct Answer: A) CH3OH. 7. Why 2-butonal most soluble in water than 2-octanol. What is the key factor? A) Because of branching. B) Because of molecular weight. C) Because of surface area. D) Because of hydrophobic areas. Show Answer Correct Answer: D) Because of hydrophobic areas. 8. Compounds which do not undergo Crossed aldol condensation are- A) Formaldehyde and Acetaldehyde. B) Acetaldehyde and Propionaldehyde. C) Formaldehyde and Acetone. D) Formaldehyde and Benzaldehyde. Show Answer Correct Answer: D) Formaldehyde and Benzaldehyde. 9. Which of the following molecules will be oxidized into propanone with acidified potassium dichromate? A) 1-propanol. B) 2-propanol. C) 1-butanol. D) 2-methyl-2-propanol. Show Answer Correct Answer: B) 2-propanol. 10. The greater the PKa value the stronger is the acid. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 11. A homologous series is a family of organic compounds with A) Similar chemical properties and same general formula. B) Similar chemical properties and different general formula. C) Different chemical properties and same general formula. D) Similar physical properties and same general formula. Show Answer Correct Answer: A) Similar chemical properties and same general formula. 12. Methanoic acid reacts with magnesium carbonate to give: A) Magnesium methanate, carbon dioxide and water. B) Magnesium methanoate, carbon dioxide and water. C) Magnesium, carbon dioxide and water. D) Carbon dioxide and water. Show Answer Correct Answer: B) Magnesium methanoate, carbon dioxide and water. 13. Pentan-3-ol is an example of A) Aromatic alcohol. B) Tertiary alcohol. C) Secondary alcohol. D) Primary alcohol. Show Answer Correct Answer: C) Secondary alcohol. 14. Which of the following species can act as the strongest base? A) V OH. B) V OR. C) V O C6H5. D) . Show Answer Correct Answer: A) V OH. 15. When 2-bromobutane reacts with alcoholic KOH, the reaction is:(1) Hydrogenation (2) Halogenation (3) Dehydrohalogenation (4) None of these A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 16. FInd out the product of Pinacol-Pinacolone Rearrangement reaction of 1, 1-Diphenyl-2-methyl-1, 2-propanediol? A) 3, 3-DIphenyl-2-butanone. B) 2-Methyl-1, 2-diphenyl-propanone. C) Both as racemic mixture. D) None of the above. Show Answer Correct Answer: A) 3, 3-DIphenyl-2-butanone. 17. An example of a trihydric alcohol is A) Ethyl alcohol. B) Glycol. C) Glycerol. D) Isopropyl alcohol. Show Answer Correct Answer: C) Glycerol. 18. What is the IUPAC name of tert-butyl alcohol? A) Propan-2-ol. B) 2-methylpropan-1-ol. C) 2-methylpropan-2-ol. D) Butan-2-ol. Show Answer Correct Answer: C) 2-methylpropan-2-ol. 19. How many total isomers can be formed for C$_{4}$H$_{9}$OH A) 4. B) 5. C) 6. D) 8. Show Answer Correct Answer: A) 4. 20. What colour would phenol turn when universal indicator is added? A) Red. B) Green. C) Orange. D) Blue. Show Answer Correct Answer: C) Orange. 21. Which of the following will react to form hydrogen gas and an alkoxide salt? A) Ethanol and sodium. B) 1-propanol and sodium butanoate. C) Sodium hydroxide and propyl ethanoate. D) HCl, ethanol and methanoic acid. Show Answer Correct Answer: A) Ethanol and sodium. 22. Which of the following compounds react with sodium hydroxide solution in water? A) Phenol. B) Benzyl alcohol. C) Tert-Butyl alcohol. D) Ethanol. Show Answer Correct Answer: A) Phenol. 23. Which of the following reagents can not, be used to oxidise primary alcohols to aldehydes? A) CrO3 in anhydrous medium. B) KMnO4 in acidic medium. C) Pyridinium chlorochromate. D) Heat in the presence of Cu at 573 K. Show Answer Correct Answer: B) KMnO4 in acidic medium. 24. The formation of alcohols and carboxylic acids from ester is an example of A) Eseterification. B) Etherification. C) Oxidation. D) Hydrolysis. Show Answer Correct Answer: D) Hydrolysis. 25. Among the following compounds, which ones can be dehydrated the fastest? A) 3-Methyl-3-pentanol. B) Pentan-1-ol. C) Pentan-2-ol. D) 3-Methyl-1-pentanol. Show Answer Correct Answer: A) 3-Methyl-3-pentanol. ← PreviousNext →Related QuizzesClass 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 1Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 2Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 3Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 4Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 6Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 7Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 8Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 9Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 10Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books