This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Chemistry Part Ii > Class 12 Chemistry (Part Ii) Chapter 11 Alcohols – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Were used as a general anesthetic in the past. A) Organic Halides. B) Ketones. C) Ethers. D) Aldehydes. Show Answer Correct Answer: C) Ethers. 2. What is the common name for the alcohol CH3CH2OH? A) Ethanol. B) Methanol. C) Butanol. D) Propanol. Show Answer Correct Answer: A) Ethanol. 3. The higher boiling points of alcohols are due to the existence of ..... between their molecules. A) P-p interaction. B) Oxygen bonding. C) Hydrogen bonding. D) Lonepair-shared pair bonding. Show Answer Correct Answer: C) Hydrogen bonding. 4. What type of organic product is produced in the reaction between alcohols and hydrogen halides? A) Amines. B) Carboxylic acids. C) Esters. D) Halogenoalkanes. Show Answer Correct Answer: D) Halogenoalkanes. 5. Primary, Secondary and Tertiary alcohols can be distinguished by A) Tollen's test. B) Victor Meyer's test. C) Hoffmann's test. D) Iodoform test. Show Answer Correct Answer: B) Victor Meyer's test. 6. Select the product formed when Propanone is treated with methyl magnesium bromide A) Propanoic acid. B) Propan-2-ol. C) Butan-1-ol. D) 2-Methyl propan-2-ol. Show Answer Correct Answer: D) 2-Methyl propan-2-ol. 7. For preparing primary alcohols Grignard reagent must be reacted with ..... A) Formaldehyde. B) Any aldehyde. C) Ketone. D) None of the above. Show Answer Correct Answer: A) Formaldehyde. 8. Answer true or false to the following statement. Ethers are weakly polar compounds. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. (9.11) ..... alcohols with HCl require a lewis acid and ..... catalyst A) Primary, ZnCl2. B) Secondary, NaCl. C) Tertiary, ZnCl2. D) Primary, NaCl. Show Answer Correct Answer: A) Primary, ZnCl2. 10. The major product of dehydration of alcohols will be: A) More highly substituted alkene. B) Less substituted alkene. C) Alkyl hydrogen sulphate. D) Can't say. Show Answer Correct Answer: A) More highly substituted alkene. 11. Also known as the wood alcohol A) Isopropyl alcohol. B) Ethyl alcohol. C) Methanol. D) Glycerol. Show Answer Correct Answer: C) Methanol. 12. Which of the following will not undergo aldol condensation A) Trideuteroacetaldehyde. B) Propanaldehyde. C) Acetaldehyde. D) Benzaldehyde. Show Answer Correct Answer: D) Benzaldehyde. 13. What is true about carboxylic acids? A) Alkanes oxidize to form carboxylic acids. B) Carboxylic acids can react with metals. C) Carboxylic acids are strong acids. D) Carboxylic acids cannot form hydrogen bonds. Show Answer Correct Answer: B) Carboxylic acids can react with metals. 14. Which of the following is not a position isomer of heptan 1-ol A) Heptan 3-ol. B) Heptan 2-ol. C) Heptan 2-ol. D) 2-methyl hexan 1-ol. Show Answer Correct Answer: D) 2-methyl hexan 1-ol. 15. What is esterification? A) Saying 'its terrific!' to someone really fast. B) The reaction that occurs between an alcohol and a carboxylic acid to form an ester. C) The reaction that occurs between an alcohol and a ester to form a carboxylic acid. D) The reaction that occurs when an ester breaks down into an alcohol and a carboxylic acid. Show Answer Correct Answer: B) The reaction that occurs between an alcohol and a carboxylic acid to form an ester. 16. How do phenols differ from alcohols in terms of acidity? A) Alcohols are more acidic than phenols. B) Phenols and alcohols have the same acidity. C) Phenols are more acidic than alcohols. D) Phenols are less acidic than alcohols. Show Answer Correct Answer: C) Phenols are more acidic than alcohols. 17. A compound X is treated with sodium metal to give Y and with PCl$_{5}$ to give Z. Y and Z react together to give diethyl ether. What are the compounds X, Y and Z? A) X:Ethanol, Y:Sodium ethoxide, Z:Chloroethane. B) X:Chloroethane, Y:Ethanol, Z:Sodium ethanoate. C) X:Ethanol, Y:Sodium methoxide, Z:Chloroethane. D) X:Ethanol, Y:Sodium methanoate, Z:Chloroethane. E) X:Ethanol, Y:Sodium ethoxide, Z:Chloroethene. Show Answer Correct Answer: A) X:Ethanol, Y:Sodium ethoxide, Z:Chloroethane. 18. Four compounds A, B, C and D having similar molecular masses for their boiling points. It was found that compound C has the highest boiling point of all four. What is the compound C most likely to be? A) Alcohol. B) Ether. C) Hydrocarbon. D) Haloalkane. Show Answer Correct Answer: A) Alcohol. 19. Toluene and phenol have similar boiling points. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 20. Which one is Lucas reagent? A) FeSO$_{4}$ / H$_{2}$O$_{2}$. B) Cold dilute alkaline KMnO$_{4}$. C) Con.HCl / anhydrous ZnCl$_{2}$. D) Anhydrous AlCl$_{3}$. Show Answer Correct Answer: C) Con.HCl / anhydrous ZnCl$_{2}$. 21. Methanol can be obtained from A) Water gas. B) Destructive distillation of wood. C) Methane. D) All. Show Answer Correct Answer: D) All. 22. Bond length of C-O Bond in phenol is shorter than that in methanol A) C-O bond has more electron density in phenols than that of methanol. B) Sp2 hybrid C in phenol than sp3 hybrid C in methanol. C) C-O bond enthalpy is more in phenol as compared to that of methanol. D) C-O bond polarity is more in phenol as compared with that of methanol. Show Answer Correct Answer: B) Sp2 hybrid C in phenol than sp3 hybrid C in methanol. 23. Answer true or false to the following statement. Ethers are relatively reactive to chemical transformation and, for this reason, are often employed as reactant in chemical reactions. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. What is the IUPAC name of quinol? A) Benzene-1, 3-diol. B) Resorcinol. C) Catechol. D) Benzene-1, 2-diol. E) Benzene-1, 4-diol. Show Answer Correct Answer: E) Benzene-1, 4-diol. 25. What is the order of adding the reagents in Victor Meyer's test? A) P/I$_{2}$, AgNO$_{2, }$KOH, HNO$_{2, }$. B) P/I$_{2}$, KOH, HNO$_{2, }$AgNO$_{2}$. C) AgNO$_{2}$, P/I$_{2}$, KOH, HNO$_{2}$. D) P/I$_{2}$, AgNO$_{2, }$HNO$_{2, }$KOH,. Show Answer Correct Answer: D) P/I$_{2}$, AgNO$_{2, }$HNO$_{2, }$KOH,. 26. What is formed when you oxidise a secondary alcohol A) Aldehyde. B) Carboxylic Acid. C) Ketone. D) Nothing. Show Answer Correct Answer: C) Ketone. 27. Which is NOT a physical property of alcohols or phenols? A) Phenols are generally only slightly soluble in water. B) The solubilities of normal primary alcohols in water decrease with increasing molecular weight. C) The hydroxyl group of an alcohol is nonpolar. D) Due to hydrogen bonding, boiling points of alcohols are much higher than those of corresponding alkanes. Show Answer Correct Answer: C) The hydroxyl group of an alcohol is nonpolar. 28. If chloroform is left open in air in presence of sun-rays:(1) Phosgene gas is formed (2) Explosion takes place (3) Polymerisation take place (4) No reaction take place A) 3. B) 2. C) 1. D) 4. Show Answer Correct Answer: C) 1. 29. The functional group made from alcohols and carboxylic acids A) Alkynes. B) Ethers. C) Esters. D) Carbocilic acids. Show Answer Correct Answer: C) Esters. 30. All alcohols combust completely to form A) Carbon and carbon dioxide. B) Carbon monoxide and water. C) Carbon dioxide and water. D) Soot, carbon monoxide and water. Show Answer Correct Answer: C) Carbon dioxide and water. 31. Which of the following compounds reduces Ag$^{+}$ ions to metallic Ag in ammoniacal silver nitrate solution? A) Ketone. B) Carboxylic acid. C) Alkene. D) Aldehyde. Show Answer Correct Answer: D) Aldehyde. 32. Which one of the following will produce a primary alcohol by reacting with Methyl magnesium iodide? A) Ethyl acetate. B) Acetone. C) Methyl cyanide. D) Ethylene oxide. Show Answer Correct Answer: D) Ethylene oxide. 33. Ethers are produced by the hydration of alcohol.Named acc. to the alcohols from which they were produced A) 1st statement is correct. B) 2nd statement is correct. C) Both statements are correct. D) Both statements are incorrect. Show Answer Correct Answer: B) 2nd statement is correct. 34. Sulfur analogs of alcohols containing an-SH functional group in place of an-OH group A) Phenols. B) Thiols. C) Alcohols. D) Ether. Show Answer Correct Answer: B) Thiols. 35. Phenol is obtained by heating aqueous solution of which of the following? A) Benzyl alcohol. B) Benzoic acid. C) Aniline. D) Benzene diazonium chloride. Show Answer Correct Answer: D) Benzene diazonium chloride. 36. Which of the following reactions will yield phenol? A) . B) . C) . D) . Show Answer Correct Answer: A) . 37. Denatured alcohol is fine for some types of lab work and as an ingredient in certain products, and it's safe to drink. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 38. Secondary alcohols can be oxidized to yield A) RCOR. B) RCOOR. C) ROR. D) RCHO. Show Answer Correct Answer: A) RCOR. 39. (9.3) How do you name an epoxide substituent? A) Epoxide. B) Epoxane. C) Epoxy. D) Epoxene. Show Answer Correct Answer: C) Epoxy. 40. 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. 41. What does the presence of a benzene ring do to the O-H bond in terms of phenols? A) Strengthens. B) Converts. C) No effect. D) Weakens. Show Answer Correct Answer: D) Weakens. 42. What is the name of this reagent [CrO$_{3}$.2C$_{5}$H$_{5}$N]? A) Jones Reagent. B) Collin's Reagent. C) Lucas Reagent. D) Corey's Reagent. Show Answer Correct Answer: B) Collin's Reagent. 43. Why 2-butonal most soluble in water than 2-octanol. What is the key factor? A) Because of branching. B) Because of hydrophobic areas. C) Because of surface area. D) Because of molecular weight. Show Answer Correct Answer: B) Because of hydrophobic areas. 44. 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. 45. Which of the following molecules will be oxidized into propanone with acidified potassium dichromate? A) 1-butanol. B) 2-methyl-2-propanol. C) 2-propanol. D) 1-propanol. Show Answer Correct Answer: C) 2-propanol. 46. 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. 47. 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. 48. 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. 49. Pentan-3-ol is an example of A) Primary alcohol. B) Secondary alcohol. C) Tertiary alcohol. D) Aromatic alcohol. Show Answer Correct Answer: B) Secondary alcohol. 50. Which of the following species can act as the strongest base? A) V OR. B) V O C6H5. C) V OH. D) . Show Answer Correct Answer: C) V OH. 51. When 2-bromobutane reacts with alcoholic KOH, the reaction is:(1) Hydrogenation (2) Halogenation (3) Dehydrohalogenation (4) None of these A) 1. B) 4. C) 2. D) 3. Show Answer Correct Answer: D) 3. 52. 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. 53. An example of a trihydric alcohol is A) Ethyl alcohol. B) Glycerol. C) Glycol. D) Isopropyl alcohol. Show Answer Correct Answer: B) Glycerol. 54. What is the IUPAC name of tert-butyl alcohol? A) 2-methylpropan-2-ol. B) 2-methylpropan-1-ol. C) Propan-2-ol. D) Butan-2-ol. Show Answer Correct Answer: A) 2-methylpropan-2-ol. 55. How many total isomers can be formed for C$_{4}$H$_{9}$OH A) 5. B) 6. C) 8. D) 4. Show Answer Correct Answer: D) 4. 56. What colour would phenol turn when universal indicator is added? A) Red. B) Orange. C) Green. D) Blue. Show Answer Correct Answer: B) Orange. 57. 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. 58. Which of the following compounds react with sodium hydroxide solution in water? A) Tert-Butyl alcohol. B) Phenol. C) Ethanol. D) Benzyl alcohol. Show Answer Correct Answer: B) Phenol. 59. Which of the following reagents can not, be used to oxidise primary alcohols to aldehydes? A) Heat in the presence of Cu at 573 K. B) CrO3 in anhydrous medium. C) KMnO4 in acidic medium. D) Pyridinium chlorochromate. Show Answer Correct Answer: C) KMnO4 in acidic medium. 60. The formation of alcohols and carboxylic acids from ester is an example of A) Oxidation. B) Etherification. C) Hydrolysis. D) Eseterification. Show Answer Correct Answer: C) Hydrolysis. ← PreviousNext →Related QuizzesScience QuizzesClass 12 QuizzesClass 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 1Class 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 8Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books