This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Chemistry Part Ii > Class 12 Chemistry (Part Ii) Chapter 11 Alcohols – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is not a common use of alcohol? A) Alcoholic drinks. B) A solvent for organic compounds. C) Make soft drinks. D) As fuel for cars. Show Answer Correct Answer: C) Make soft drinks. 2. Answer true or false to the following statement. Epoxides are more reactive than acyclic ethers. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 3. What is the main use of phenol in industry? A) Food preservative. B) Precursor for the production of plastics, resins, and pharmaceuticals. C) Fuel for combustion engines. D) Antibacterial agent in cleaning products. Show Answer Correct Answer: B) Precursor for the production of plastics, resins, and pharmaceuticals. 4. Answer true or false to the following question. Alcohols can be converted to haloalkanes. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. The antidote for ethylene glycol poisoning is A) Ethyl alcohol. B) Egg white. C) Methyl alcohol. D) None of these. Show Answer Correct Answer: A) Ethyl alcohol. 6. IUPAC name of m-cresol is ..... A) 3-chlorophenol. B) 3-methylphenol. C) 3-methoxyphenol. D) Benzene-1, 3-diol. Show Answer Correct Answer: B) 3-methylphenol. 7. Bromine reacts with phenol and decolorize orange color and turns it to which of the colored precipitate? A) Black precipitate. B) Blue precipitate. C) Pink precipitate. D) White precipitate. Show Answer Correct Answer: D) White precipitate. 8. When wine is kept in air, it becomes sour due to A) Bacteria. B) Virus. C) Oxidation of C2H5OH to CH3COOH. D) Formic acid. Show Answer Correct Answer: C) Oxidation of C2H5OH to CH3COOH. 9. Name the electrophile used in conversion of phenol to salicylic acid. A) H2O. B) H2SO4. C) NaOH. D) CO2. Show Answer Correct Answer: D) CO2. 10. Ethanol is a natural byproduct of plant fermentation and also can be produced through the hydration of propylene A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 11. In Victor Meyer's test Pseudonitrol is given by A) Secondary Alcohol. B) Quaternary alcohol. C) Tertiary alcohol. D) Primary alcohol. Show Answer Correct Answer: A) Secondary Alcohol. 12. Primary alcohols can be oxidized to form: A) Aldehydes. B) Carboxylic acids. C) Ketones. D) None of the above. Show Answer Correct Answer: A) Aldehydes. 13. To convert toulene to benzaldehyde reaction used is A) Aldol. B) Rosen mund. C) Gattermann koch. D) Etard 's reaction. Show Answer Correct Answer: D) Etard 's reaction. 14. (9.7) Why can epoxides react more easily than ethers even if both have bad leaving groups A) Like, alcohols they can be treated with an acid. B) Because steric effects allow increase the leaving group ability of epoxides. C) Because they undergo addition reactions which do not require the leaving group to leave. D) Angle strain makes the oxygen open to nucleophilic attacks. Show Answer Correct Answer: D) Angle strain makes the oxygen open to nucleophilic attacks. 15. The strongest type of intermolecular force in alcohols is A) Van der Waals'. B) Covalent Bonding. C) Hydrogen Bonding. D) Organic. Show Answer Correct Answer: C) Hydrogen Bonding. 16. What is the IUPAC name for the halogenoalkane CH3CH2CH2Br? A) 3-bromopropane. B) 2-bromopropane. C) 1-bromopropane. D) 1-chloropropane. Show Answer Correct Answer: C) 1-bromopropane. 17. Assertion:Phenol gives a violet colouration with neutral ferric chlorideReason:Phenols show keto-enol isomerism and exist mostly in the enolic form 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: A) If both Assertion and Reason are correct and Reason is the correct explanation of the Assertion. 18. (9.15) Which of the two are more reactive A) Sulfides. B) Ethers. C) All the above. D) None of the above. Show Answer Correct Answer: A) Sulfides. 19. A:Bond angle in ethers is slightly less than the tetrahedral angle.R:There is a repulsion between the two bulky alkyl groups. A) Both A and R are correct and R is the correct explanation for A. B) Both A and R are correct but R is not the correct explanation for 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. 20. The general formula for alcohol A) Alc. B) ROR. C) RAl. D) ROH. Show Answer Correct Answer: D) ROH. 21. Which compound of alcohols is highest boiling point? A) Hexanol. B) 1, 4-butanediol. C) 1-butanol. D) 2-methyl-2-butanol. Show Answer Correct Answer: B) 1, 4-butanediol. 22. (9.8) what are the steps of E1 dehydration1-proton removal, pi bond formation2-protonation of OH to HOH3-Heterolysis of C-O bond A) 2, 3, 1. B) 2, 1, 3. C) 3, 2, 1. D) 1, 2, 3. Show Answer Correct Answer: A) 2, 3, 1. 23. When Propan-1-ol is treated with P$_{4}$/I$_{2}$, AgNO$_{2}$ and HNO$_{2}$ successively, it gives A) Nitrolic acid. B) Pseudonitrol. C) Nitroalkane. D) Secondary Nitroalkane. Show Answer Correct Answer: A) Nitrolic acid. 24. In Sandmeyer reaction, what is the intermediate compound formed before adding cuprous halide? A) Alcohol halide. B) Diazonium halide. C) Aqueous halide. D) None of the mentioned. Show Answer Correct Answer: B) Diazonium halide. 25. From Williamson's synthesis preparation of which of the following is possible? (1) Only symmetrical ethers (2) Only asymmetrical ethers (3) Both (1) and (2) (4) None of the above A) 3. B) 2. C) 4. D) 1. Show Answer Correct Answer: A) 3. 26. This alcohol is important in terms of body chemistry especially as a constituent of fats A) Glycerol. B) Ethylene Glycol. C) Methanol. D) Butanol. Show Answer Correct Answer: A) Glycerol. 27. Aldehydes and Ketones can be prepared from A) Acid Chlorides. B) Nitriles. C) Both of them. D) None of the above. Show Answer Correct Answer: C) Both of them. 28. This alcohol is used as a permanent antifreeze A) Ethylene glycol. B) Methanol. C) Propanol. D) Ethanol. Show Answer Correct Answer: A) Ethylene glycol. 29. If ethanol is oxidised under reflux, the product will be: A) Ethanoic Acid. B) No Reaction. C) Ethanone. D) Ethanal. Show Answer Correct Answer: A) Ethanoic Acid. 30. When ethyl alcohol is oxidized by two degrees, which one of the following products results? A) Dimethyl ether. B) Oxy-propane. C) Acetaldehyde. D) Acetic acid. E) Dimethyl ketone. Show Answer Correct Answer: D) Acetic acid. 31. What is Lucas test done to differentiate between? A) Alcohols and phenols. B) Primary and secondary alcohols. C) Primary, secondary and tertiary alcohols. D) Secondary and tertiary alcohols. E) Alcohols and carboxylic acids. Show Answer Correct Answer: C) Primary, secondary and tertiary alcohols. 32. Ethanol is an isomer of A) Ethanal. B) Methylmethanoate. C) Methoxymethane. D) Methoxymethanoate. Show Answer Correct Answer: C) Methoxymethane. 33. What happens when phenol reacts with con. HNO$_{3}$ A) O-nitro phenol is formed as major product. B) Picric acid is formed. C) No reaction occurs. D) P-nitro phenol is formed as major product. Show Answer Correct Answer: B) Picric acid is formed. 34. What would be the reactant and reagent used to obtain 2, 4-dimenthyl pentan-3-ol?(a) Propanal and propyl magnesium bromide A) Propanal and propyl magnesium bromide. B) 3-methylbutanal and 2-methyl magnesium iodide. C) 2-dimethylpropanone and methyl magnesium odide. D) 2-methylpropanal and isopropyl magnesium iodide. Show Answer Correct Answer: D) 2-methylpropanal and isopropyl magnesium iodide. 35. What compound is useful to use in the dehydration of an alcohol A) Aluminium oxide. B) Calcium hydroxide. C) Phosphorous triiodide. D) Sulfur dichloride oxide. Show Answer Correct Answer: A) Aluminium oxide. 36. Which one of the following substances is used to identify aldehydes? A) NaHCO$_{3}$. B) KMnO$_{4}$. C) [Ag(NH$_{3}$)$_{2}$]OH. D) FeCl$_{3}$. E) Br$_{2}$. Show Answer Correct Answer: C) [Ag(NH$_{3}$)$_{2}$]OH. 37. What is the name of $CH_3CH_{ }\left(CH_3\right)CH_2OH$ A) Butan-1-ol. B) 2-methylpropan-1-ol. C) 2-methylprop-2-ol. D) But-1-ol. Show Answer Correct Answer: B) 2-methylpropan-1-ol. 38. A compound X with the molecular formula C2H8O can be oxidised to another compound Y whose molecular formulae is C3H6O2. The compound X may be A) CH3CH2CHO. B) CH3CH2OCH3. C) CH3CH2CH2OH. D) CH3CHOHCH3. Show Answer Correct Answer: C) CH3CH2CH2OH. 39. Methanol is metabolized in the body to formaldehyde and formic acid. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 40. Which of the following compounds cannot be used to halogenate an alcohol. A) HCl. B) Cl$_{2}$. C) SOCl$_{2}$. D) PCl$_{5}$. Show Answer Correct Answer: B) Cl$_{2}$. 41. In which alkyl halide, SN2 mechanism is favoured maximum? (1) CH3Cl (2) CH3CH2Cl (3) (CH3 )2CHCl (4) (CH3 )3C-Cl A) 4. B) 1. C) 2. D) 3. Show Answer Correct Answer: B) 1. 42. Name two reagents which should be used to prepared ethoxy benzene A) Sodium phenoxide and ethyl chloride. B) Sodium ethoxide and chlorobenzene. C) Ethanol with chlorobenzene. D) None. Show Answer Correct Answer: A) Sodium phenoxide and ethyl chloride. 43. Primary alcohols are oxidised to: A) Carboxylic acids then aldehydes. B) Ketones. C) No reaction. D) Aldehydes then carboxylic acids. Show Answer Correct Answer: D) Aldehydes then carboxylic acids. 44. Which of the following is not a primary amine? A) Cyclohexylamine. B) 1-Butylamine. C) Diethylamine. D) 3-Hexylamine. Show Answer Correct Answer: C) Diethylamine. 45. Answer true or false to the following questions. Alcohols have higher boiling points than ethers with the same molecular weight. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 46. We have 4 substituted phenols and 4 pKa values ..... phenol, m-nitrophenol, p-nitro phenol, o-cresolpKa-10.2, 7.1, 10.0, 8.3which molecule has the value 8.3? A) Phenol. B) P-nitro phenol. C) M-nitrophenol. D) O-cresol. Show Answer Correct Answer: C) M-nitrophenol. 47. (9.4) Which functional groups are capable of Hydrogen Bonding A) Alcohol. B) Ether. C) Epoxide. D) None of the above. Show Answer Correct Answer: A) Alcohol. 48. Spirit is a 95% solution of A) Bezene. B) Acetone. C) Methanol. D) Ethanol. Show Answer Correct Answer: D) Ethanol. 49. The increasing order of acidic strength of different types of alcohol and water is: A) Primary Alcohol < Secondary Alcohol < Tertiary Alcohol < Water. B) Water < Tertiary Alcohol < Secondary Alcohol < Primary Alcohol. C) Water < Primary Alcohol < Secondary Alcohol < Tertiary Alcohol. D) Tertiary Alcohol < Secondary Alcohol < Primary Alcohol < Water. Show Answer Correct Answer: D) Tertiary Alcohol < Secondary Alcohol < Primary Alcohol < Water. 50. Which of these is gem-dihalide:(1) CH3 .CHBr2 (2) CH2Br.CH2Br (3) CH3CHBr. CH2Br (4) None of these A) 2. B) 4. C) 3. D) 1. Show Answer Correct Answer: D) 1. 51. Which of the following alcohols gives 2-butenc on dehydration byconc. H2SO4? A) 2-methyl 1-propanol. B) 2-methyl propene-2-ol. C) Butane 1-ol. D) Butane-2-ol. Show Answer Correct Answer: D) Butane-2-ol. 52. When hydroxyl group is attached to a benzene ring, what class of compound will form? A) Ether. B) Thiols. C) Phenol. D) Alcohol. Show Answer Correct Answer: C) Phenol. 53. What is the name of the alcohol with 4 carbons? A) Butane. B) Ethanol. C) Propanol. D) Butanol. Show Answer Correct Answer: D) Butanol. 54. Which of the following will react with sulfuric acid to produce 1-butanol and ethanoic acid? A) Butyl ethanoate. B) Ethyl butanoate. C) None of these. D) Either of these. Show Answer Correct Answer: A) Butyl ethanoate. 55. Which of the following is true about manufacture of ethanol? A) Alkenes are reactive so they react with water to give ethanol at room temperature. B) Fermentation involves aerobic conditions. C) Hydration of ethene is a cyclic process. D) Fermentation results in 100% pure ethanol. Show Answer Correct Answer: C) Hydration of ethene is a cyclic process. 56. In alcohols, the-OH group is covalently bonded to a saturated hydrocarbon. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 57. Addition reaction of Hydrogen Bromide to the unsymmetrical alkene follows ..... A) Peroxide effect. B) Kharash effect. C) Markovnikov's rule. D) Anti markovnikov's rule. Show Answer Correct Answer: C) Markovnikov's rule. 58. Glucose molecule reacts with 'X' number of molecules ofphenylhydrazine to yield osazone. The value of 'X' is A) One. B) Four. C) Two. D) Three. Show Answer Correct Answer: D) Three. 59. What is formed when you oxidise a tertiary alcohol A) Aldehyde. B) Carboxylic Acid. C) Ketone. D) Nothing. Show Answer Correct Answer: D) Nothing. 60. What color would a primary alcohol change when exposed to acidified potassium permanganate A) Clear / no reaction. B) Green. C) I don't know we didn't learn that? Explosion?????. D) Orange. Show Answer Correct Answer: C) I don't know we didn't learn that? Explosion?????. ← 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 8Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books