This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Chemistry Part Ii > Class 12 Chemistry (Part Ii) Chapter 11 Alcohols – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 8 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Chemicals that contain a ketone functional group will end with ..... A) -ol. B) -oic acid. C) -one. D) -al. Show Answer Correct Answer: C) -one. 2. Answer true or false to the following question. A dehydration reaction of alcohols yields an epoxide as the product. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 3. Which class will have the highest boiling point and melting point for similarly sized molecules? A) Ethers. B) Alkanes. C) Alcohols. D) Alkenes. Show Answer Correct Answer: C) Alcohols. 4. Acetone with methylmagnesium bromide followed by hydrolysis yeild A) Propan-1-ol. B) No reaction. C) Propan-2-ol. D) 2-methylpropan-2-ol. Show Answer Correct Answer: D) 2-methylpropan-2-ol. 5. Isopropylbenzene is also known as- A) Cumene. B) Aniline. C) Butyl Benzene. D) None of the above. Show Answer Correct Answer: A) Cumene. 6. (9.6) What is the other method used in synthesizing ethers? A) Williamson method. B) Calvin process. C) Haber process. D) Hammond method. Show Answer Correct Answer: A) Williamson method. 7. Which of the following methods can be used to make alcohols?i. Electrophilic addition of water to an alkene in the presence of an acid catalystii. Boiling a haloalkane with aqueous sodium hydroxide under refluxiii. Passing carbon dioxide through a solution of a Grignard reagent A) I only. B) I and ii. C) Ii and iii. D) I, ii and iii. Show Answer Correct Answer: B) I and ii. 8. 2 R-OH + 2 Na $\rightarrow$ 2 RONa + H$_{2}$; is an example of A) Electrophilic substitution reaction. B) Acidic nature of alcohol. C) Basic nature of alcohol. D) Nucleophilic substitution reaction. Show Answer Correct Answer: B) Acidic nature of alcohol. 9. In which of the following OH group is attached with SP$^{2}$ C A) Phenol. B) Allyl alcohol. C) Benzyl alcohol. D) Propan-2-ol. Show Answer Correct Answer: A) Phenol. 10. (9.17-9.18) What becomes a carcinogen when inhaled and reacts in body A) Zileuton. B) Benzo[a]pyrene. C) All the above. D) None of the above. Show Answer Correct Answer: B) Benzo[a]pyrene. 11. Which is the correct functional group in alcohols? A) OH. B) COOH. C) They don't have a functional group. D) C=C. Show Answer Correct Answer: A) OH. 12. In which of the following OH is attached with SP$^{3}$ C A) Phenol. B) 0-cresol. C) M-cresol. D) Allyl alcohol. Show Answer Correct Answer: D) Allyl alcohol. 13. Phenol can be distinguished from ethanol by the following reagents except A) Sodium. B) Br$_{2}$/H$_{2}$O. C) Neutral FeCl$_{3}$. D) NaOH/I$_{2}$. Show Answer Correct Answer: A) Sodium. 14. Which of the following is highly soluble in water? A) Diethyl ether. B) Ethane. C) Ethanol. D) Ethyl iodide. Show Answer Correct Answer: C) Ethanol. 15. What does [O] represent A) K$_{2}$CrO$_{7}$ and H$_{2}$SO$_{4}$. B) K$_{2}$Cr$_{2}$O$_{6}$ and H$_{2}$SO$_{4}$. C) K$_{2}$Cr$_{3}$O$_{7}$ and H$_{2}$SO$_{4}$. D) K$_{2}$Cr$_{2}$O$_{7}$ and H$_{2}$SO$_{4}$. Show Answer Correct Answer: D) K$_{2}$Cr$_{2}$O$_{7}$ and H$_{2}$SO$_{4}$. 16. Alcohols can act as A) Electrophile. B) Nucleophile. C) Both. D) None. Show Answer Correct Answer: C) Both. 17. Which is NOT true of Ethers? A) Highly reactive. B) Flammable. C) Used in anesthetics. D) Relatively unreactive. Show Answer Correct Answer: A) Highly reactive. 18. CH$_{3}$CH$_{2}$OH can be converted into CH$_{3}$CHO by A) Treatment with KMnO$_{4}$. B) Catalytic hydrogenation. C) Treatment with LiAlH$_{4}$. D) Treatment with pyridinium chlorochromate. Show Answer Correct Answer: D) Treatment with pyridinium chlorochromate. 19. When does ethanol exhibit acidic character? A) On reaction with acetic acid. B) On reaction with sodium chloride. C) On reaction with sodium metal. D) On reaction with Lucas test. E) On reaction with brine solution. Show Answer Correct Answer: C) On reaction with sodium metal. 20. What is the reagent for Fehling's test? A) Cu$^{2+}$, OH$^{-}$. B) [Ag(NH$_{3}$)$_{2}$]$^{+}$, OH$^{-}$. C) 2, 4-dinitrophenylhydrazine. D) Excess I$_{2}$, NaOH. Show Answer Correct Answer: A) Cu$^{2+}$, OH$^{-}$. 21. What color would a secondary alcohol turn while reacting with acidified Potassium Dichromate? A) Orange. B) Green. C) Red. D) Clear / No change. Show Answer Correct Answer: B) Green. 22. (9.5) which is an anesthetic? A) Ethanol. B) Diethyl ether. C) Eplerenone. D) Tiotropium. Show Answer Correct Answer: B) Diethyl ether. 23. The benzoylation of phenols in the presence of alkalis is known as ..... reaction. A) Schotten-Baumann. B) Gattermann. C) Esterification. D) Etherification. Show Answer Correct Answer: A) Schotten-Baumann. 24. Phenols are not soluble in which of the following? A) Alcohol. B) Sodium hydroxide. C) Ether. D) Water. Show Answer Correct Answer: D) Water. 25. What is the formula of butan-2-ol? A) CH3CH(OH)CH3. B) CH3CH(OH)CH2CH3. C) CH3(CH2)2CH2OH. D) None of the above. Show Answer Correct Answer: B) CH3CH(OH)CH2CH3. 26. (9.8) What is used to separate alkenes from alcohols during an alcohol dehydration process A) Density. B) Charge. C) Melting point. D) Boiling point. Show Answer Correct Answer: D) Boiling point. 27. Blue color of denatured alcohol is due to A) Methanol. B) CuSO$_{4}$. C) Ethanol. D) All of the above. Show Answer Correct Answer: B) CuSO$_{4}$. 28. Name the mechanism for the reduction of propanal to propan-1-ol A) Nucleophilic Addition. B) Reduction reaction. C) Oxidation reaction. D) Nucleophilic Substitution. Show Answer Correct Answer: A) Nucleophilic Addition. 29. "squeaky pop" is the observation confirming the presence of which gas? A) O$_{2}$. B) CO$_{2}$. C) H$_{2}$. D) H$_{2}$O. Show Answer Correct Answer: C) H$_{2}$. 30. Phenols produce 2, 4, 6-trinitro phenol using following reagents A) Con HNO$_{3}$ + Con H$_{2}$SO$_{4}$. B) Con H$_{2}$SO$_{4}$. C) Con HNO$_{3}$. D) Dil HNO$_{3}$. Show Answer Correct Answer: A) Con HNO$_{3}$ + Con H$_{2}$SO$_{4}$. 31. Which of the following will react in the presence of sulfuric acid to produce propyl butanoate? A) 1-propanol and butanoic acid. B) 2-propanol and sodium butanoate. C) 1-propanol and butanone. D) 2-propanol and butanoic acid. Show Answer Correct Answer: A) 1-propanol and butanoic acid. 32. In a Grignard reagent, the carbon bonded to the magnesium has a partial ..... charge, because carbon is ..... electronegative than magnesium. This makes this carbon of the Grignard ..... A) Positive, more, electrophilic. B) Positive, less, nucleophilic. C) Negative, more, nucleophilic. D) Negative, less, electrophilic. E) Positive, less, electrophilic. Show Answer Correct Answer: C) Negative, more, nucleophilic. 33. Which of the following name reactions produces salicyldehyde? A) Kolbe's reaction. B) Williamson's synthesis. C) Rosenmund reduction. D) Reimer Tiemann reaction. Show Answer Correct Answer: D) Reimer Tiemann reaction. 34. A:Phenols give o-and p-nitrophenol on nitration with concentrated HNO$_{3}$+H$_{2}$SO$_{4}$.R:-OH group in phenol is ortho and para directing. A) Both A and R are correct and R is the correct explanation of A. B) Both A and R are correct but R is not the correct explanation of A. C) A is correct but R is wrong. D) A is wrong but R is correct. E) Both are wrong. Show Answer Correct Answer: D) A is wrong but R is correct. 35. What catalyst is required for the reaction of primary and secondary alcohols with hydrogen chloride? A) Iron chloride (FeCl3). B) Zinc chloride (ZnCl2). C) Calcium chloride (CaCl2). D) Sodium chloride (NaCl). Show Answer Correct Answer: B) Zinc chloride (ZnCl2). 36. Phenols are more acidic than alcohols because A) Phenoxide ion is stablised by resonance. B) Phenols are more soluble in polar solvents. C) Phenoxide ion does not exhibit resonance. D) Alcohols do not lose H atoms at all. Show Answer Correct Answer: A) Phenoxide ion is stablised by resonance. 37. What product is formed when diethyl ether on exposure to sunlight and air with a long period:(1) Peroxide (2) Ethyl alcohol (3) Di-ethyl ketone (4) Ethane A) 2. B) 1. C) 3. D) 4. Show Answer Correct Answer: B) 1. 38. Which pair of molecules will BOTH produce carboxylic acids when fully oxidized by acidified potassium dichromate? A) 2-propanol & 1-butanol. B) 1-propanol & 2-propanol. C) Ethanol & 2-propanol. D) 1-propanol & 1-butanol. Show Answer Correct Answer: D) 1-propanol & 1-butanol. 39. What can react with esters to create an alcohol? A) Strong Base. B) LiAlH4 + H2O. C) NaBH4 + H+. D) Grignard Reagent. Show Answer Correct Answer: B) LiAlH4 + H2O. 40. Which of the following is added to chloroform to slow down its aerial oxidation in presence of light? (1) Carbonyl chloride (2) Ethyl alcohol (3) Sodium hydroxide (4) Nitric acid A) 2. B) 1. C) 3. D) 4. Show Answer Correct Answer: A) 2. 41. Which reagents below reacts with phenol and cyclopentanol? A) Aqueous bromine. B) Sodium. C) Acidic potassium manganite (VII) solution. D) Sodium hydroxide. Show Answer Correct Answer: B) Sodium. 42. Answer true or false to the following statement. Ethers are less soluble in water than are hydrocarbons with comparable molecular weight. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 43. Propanone on reaction with alkyl magnesium bromide followed by hydrolysis will produce A) Tertiary alcohol. B) Carboxylic acid. C) Primary alcohol. D) Secondary alcohol. Show Answer Correct Answer: A) Tertiary alcohol. 44. Which of the statement(s) is/are true for S$_{N}$2? i. Rearrangement occurs ii. Order of reactivity:methyl > 1$^{o}$ > 2$^{o}$ > 3$^{o}$ iii. The reaction order is 1$^{st}$ for both alkyl halide and nucleophile A) I only. B) I and ii. C) Ii and iii. D) I, ii and iii. Show Answer Correct Answer: C) Ii and iii. 45. Assertion(A):Phenols are less soluble in water as compared to alcohols.Reason(R):Phenols have large hydrophobic part A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A). B) Both Assertion (A) and Reason (R) are true but Reason is not the correct explanation of the Assertion. C) Assertion (A) is true, but Reason (R) is false. D) Assertion (A) is false, but Reason (R) is true. Show Answer Correct Answer: A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A). 46. What happens when tertiary butyl alcohol is passed over heated copper at 300$^\circ$C? A) 2-methylpropene is formed. B) 1-butene is formed. C) Butanol is formed. D) Secondary butyl alcohol is formed. Show Answer Correct Answer: A) 2-methylpropene is formed. 47. Which one of these is a secondary alcohol? A) Pentan-1-ol. B) Butan-1, 4-diol. C) Pentan-2-ol. D) 2-methylpropan-2-ol. Show Answer Correct Answer: C) Pentan-2-ol. 48. Assertion:The bond angle in alcohols is slightly lessthan the tetrahedral angle.Reason:In alcohols, the oxygen of-OH group is attachedto sp3 hybridized carbon atom. A) Assertion is correct, reason is correct; reason is not acorrect explanation for assertion. B) Assertion is incorrect, reason is correct. C) Assertion is correct, reason is correct; reason is a correctexplanation for assertion. D) Assertion is correct, reason is incorrect. Show Answer Correct Answer: C) Assertion is correct, reason is correct; reason is a correctexplanation for assertion. 49. What are the products of the hydrolysis of ethyl propanoate with potassium hydroxide? A) Ethanol and potassium propanoate. B) 1-propanol and potassium ethanoate. C) Ethanol and propanoic acid. D) 1-propanol and ethanoic acid. Show Answer Correct Answer: A) Ethanol and potassium propanoate. 50. Halogenoalkanes can undergo and elimination reaction with sodium hydroxide in ethanol. A similar dehydration/elimination reaction takes place with alcohols. What reaction conditions are required? A) Al$_{2}$O$_{3}$ and heat. B) NaOH in ethanol. C) Acidified K$_{2}$Cr$_{2}$O$_{7}$. D) Two of these. Show Answer Correct Answer: A) Al$_{2}$O$_{3}$ and heat. 51. Assertion:D(+)-Glucose is dextrorotatory in nature.Reason:'D' represents its dextrorotatory nature. A) Assertion is correct, reason is correct; reason is a correctexplanation for assertion. B) Assertion is incorrect, reason is correct. C) Assertion is correct, reason is correct; reason is not acorrect explanation for assertion. D) ) Assertion is correct, reason is incorrect. Show Answer Correct Answer: D) ) Assertion is correct, reason is incorrect. 52. Ethers are relatively inert compounds. True or false? A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 53. What is the positive observation for Tollens' test? A) Light yellow precipitate. B) Brick red precipitate. C) Silver mirror precipitate. D) Yellow or orange precipitate. Show Answer Correct Answer: C) Silver mirror precipitate. 54. How many alcohols with molecular formula C4H10O are chiral in nature? A) 1. B) 4. C) 3. D) 2. Show Answer Correct Answer: D) 2. 55. Phenol on reaction with CO$_{2}$ in basic medium gives a compound A, when this A is reacted with acetic anhydride compound B is formed, compound B is used as antipyratic and non narcotic analgesic, identify B? A) Paracetamol. B) Aspirin. C) Picric acid. D) Salicylic acid. Show Answer Correct Answer: B) Aspirin. 56. Kolbe's reaction yield ..... A) Salicylaol. B) Salicyclic acid. C) Salicylaldeyde. D) Acetyl salicyclic acid. Show Answer Correct Answer: B) Salicyclic acid. 57. Which of the following gives most stable carbocation by dehydration? (1) (CH3 )2CH-OH (2) (CH3 )3C-OH (3) CH3-CH2-OH (4) CH3-CH2CH2-CH A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 58. Which of the following compounds is aromatic alcohol? A) B, C. B) A, B, C, D. C) A. D) A, D. Show Answer Correct Answer: D) A, D. 59. When alcohols act as an acid they are behaving like- A) Nucleophile. B) Electrophile. C) Free radical. D) None of the above. Show Answer Correct Answer: A) Nucleophile. 60. Phenyl magnesium bromide reacts with methanol to give what? A) C$_{6}$H$_{5}$-CH$_{3}$ + Mg(OH)Br. B) C$_{6}$H$_{5}$ + Mg(O-CH$_{3}$)Br. C) C$_{6}$H$_{6}$ + Mg(O-CH$_{3}$)Br. D) C$_{6}$H$_{5}$-OH + Mg(CH$_{3}$)Br. E) C$_{6}$H$_{5}$-O-CH$_{3}$ + Mg(OH)Br. Show Answer Correct Answer: C) C$_{6}$H$_{6}$ + Mg(O-CH$_{3}$)Br. ← PreviousNext →Related QuizzesScience QuizzesClass 12 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 6Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 7Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books