This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 11 Alcohols – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Aryl halide is less reactive than alkyl halide towards nucleophilic substitution because:(1) Less stable carbonium ion (2) Due to large C-Cl bond energy (3) Inductive effect (4) Resonance stabilisation and sp2-hybridisation of C attached to halide A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 2. Alcohols act as both-Bronsted acids and bases. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 3. Dehydration of alcohols to give ethers is catalysed by A) Conc. H$_{2}$SO$_{4}$ at 413K. B) Conc. H$_{2}$SO$_{4 }$at 443K. C) Conc. H$_{2}$SO$_{4 }$at 383K. D) None of these. Show Answer Correct Answer: A) Conc. H$_{2}$SO$_{4}$ at 413K. 4. The enzyme required for fermentation A) Invertase. B) Zymase. C) Fermase. D) Ehanamase. Show Answer Correct Answer: B) Zymase. 5. 2-methy-2-butanol is a: A) Primary alcohol. B) Secondary alcohol. C) Tertiary alcohol. D) None of the above. Show Answer Correct Answer: C) Tertiary alcohol. 6. Which one of the following compounds is produced by the primary oxidation of butane-2-ol? A) Ethyl methyl ketone. B) Dimethyl ketone. C) 2-butanol. D) Butanoic acid. E) Diethyl ketone. Show Answer Correct Answer: A) Ethyl methyl ketone. 7. Mark the correct order of decreasing acid strength of the following compounds. A) E > d > b > a > c. B) B > d > a > c > e. C) D > e > c > b > a. D) E > d > c > b > a. Show Answer Correct Answer: A) E > d > b > a > c. 8. How can be phenol prepared from benzene diazonium chlride A) Reaction with cuprous chloride. B) Reaction with acid. C) Reaction with water. D) Reaction with alcohol. Show Answer Correct Answer: C) Reaction with water. 9. A clear, colorless liquid produces bubbles upon the addition of Mg and potassium carbonate, respectively, but no observable reaction occurs upon the addition of sodium hydroxide. What is the likely identity of the solution? A) 1-propanol. B) Propyl ethanoate. C) Propanoic acid. D) Propanone. Show Answer Correct Answer: C) Propanoic acid. 10. The products obtained by reaction of Anisole with HI are ..... A) Methanol and Iodobenzene. B) Phenol and Iodomethane. C) Phenol and Methanol. D) Ethanol and Iodobenzene. Show Answer Correct Answer: B) Phenol and Iodomethane. 11. A reacts with grignard reagent R-Mg-X followed by hydrolysis to give butan-2-ol. which statement is not correct about this reaction A) A cant be formaldehyde. B) A may be ethanal. C) R may be methyl. D) A may be propanone. Show Answer Correct Answer: D) A may be propanone. 12. Assertion:Vitamin D cannot be stored in our bodyReason:Vitamin D is fat soluble vitamin and is excretedfrom the body in urine. A) Assertion is correct, reason is correct; reason is a correctexplanation for assertion. B) Assertion is correct, reason is correct; reason is not acorrect explanation for assertion. C) Assertion is correct, reason is incorrect. D) Assertion is incorrect, reason is correct. Show Answer Correct Answer: D) Assertion is incorrect, reason is correct. 13. The major product formed in the following reaction ..... CH3CH (Cl)CH2-CH2OH+ aq.KOH is: A) A. B) B. C) C. D) D. Show Answer Correct Answer: D) D. 14. Which of the following reagents is used to test for the presence of a hydroxy group (an OH) via a nucleophilic substitution reaction? A) SOCl$_{2}$. B) PCl$_{5}$. C) PBr$_{3}$. D) NaCl & sulfuric acid. Show Answer Correct Answer: B) PCl$_{5}$. 15. Phenol reacts with bromine in CS$_{2}$ to give A) O-bromophenol. B) M-bromophenol. C) O-and p-bromophenol. D) 2, 4, 6-tribromophenol. Show Answer Correct Answer: C) O-and p-bromophenol. 16. Ether is formed during dehydration of alcohol A) True. B) False. C) Uncertain. D) Neither. Show Answer Correct Answer: A) True. 17. This alcohol is also known as grain alcohol A) Methanol. B) Ehanol. C) Glycerol. D) Isopropyl alcohol. Show Answer Correct Answer: B) Ehanol. 18. Phenol is stronger acid than water and itself it is A) Weakly acidic. B) Weakly basic. C) Alkali. D) Strong acid. Show Answer Correct Answer: A) Weakly acidic. 19. The chemical properties of phenols are significantly the same from those of alcohol. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 20. Alkenes convert into alcohols by(a) hydrolysis by dil. H2SO4(b) hydration of alkene by alkaline KMnO4(c) hydrolysis by water vapours and conc. HNO3(d) hydration of alkene by aqueous KOH A) Hydrolysis by dil. H2SO4. B) Hydration of alkene by alkaline KMnO4. C) Hydrolysis by water vapours and conc. HNO3. D) Hydration of alkene by aqueous KOH. Show Answer Correct Answer: B) Hydration of alkene by alkaline KMnO4. 21. Which type of alcohol oxidises fastest? A) Primary. B) Secondary. C) Tertiary. D) Diol. Show Answer Correct Answer: A) Primary. 22. What adds two alcohols in the anti position? A) OsO4, NMO. B) KMnO4, NaOH, cold. C) O3 + DMO. D) Acid cleaved epoxide. Show Answer Correct Answer: D) Acid cleaved epoxide. 23. Assertion:Chlorophenols are weaker acids than phenolReason:The-I effect exerted by chlorine is greater than +R effect exerted by it A) If both Assertion and Reason are correct and Reason is the correct explanation of the Assertion. B) If both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion. C) If Assertion is correct but Reason is incorrect. D) If Assertion is incorrect but Reason is correct. Show Answer Correct Answer: D) If Assertion is incorrect but Reason is correct. 24. Which of the following describes fermentation? A) It involves conversion of hydrocarbons to ethanol, accompanied by the evolution of carbon monoxide. B) It involves conversion of hydrocarbons to ethanol, accompanied by the evolution of carbon dioxide. C) It involves conversion of carbohydrates to ethanol, accompanied by the evolution of carbon monoxide. D) It involves conversion of carbohydrates to ethanol, accompanied by the evolution of carbon dioxide. Show Answer Correct Answer: D) It involves conversion of carbohydrates to ethanol, accompanied by the evolution of carbon dioxide. 25. What reagent adds a halogen (X) in the Markovnikov position? A) HX. B) X2. C) X2 + H2O. D) HX + ROOR. Show Answer Correct Answer: A) HX. ← 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 5Class 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