This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 11 Alcohols – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Name the type of reaction for the formation of alcohols from aldehydes and ketones A) Addition reaction. B) Substitution reaction. C) Oxidation reaction. D) Reduction reaction. Show Answer Correct Answer: D) Reduction reaction. 2. Which one is used as antifreeze in car radiators? A) Ethanol. B) Glycol. C) Propanol. D) Glycerol. Show Answer Correct Answer: B) Glycol. 3. What reagent splits an alkene into two ketones? A) OsO4 + NMO. B) H3O+. C) O3 + DMS or Zn/H2O. D) KMnO4, NaOH + cold. Show Answer Correct Answer: C) O3 + DMS or Zn/H2O. 4. Ethanol is used in some after-shave lotions and deodorants.Which pair of properties makes it suitable for these uses? A) It is flammable and vaporises easily. B) It is a good solvent and vaporises easily. C) It is flammable and mixes easily with water. D) It is colourless and has a low freezing point. Show Answer Correct Answer: B) It is a good solvent and vaporises easily. 5. Why is hydrogen cyanide not added directly to an aldehyde/ketone for a nucleophilic addition reaction? A) Because hydrogen cyanide is a common ingredient in household products. B) Because hydrogen cyanide is not reactive with aldehyde/ketone. C) Hydrogen cyanide is highly toxic and can be lethal if ingested or inhaled. D) Because hydrogen cyanide is too expensive to use in the reaction. Show Answer Correct Answer: C) Hydrogen cyanide is highly toxic and can be lethal if ingested or inhaled. 6. What's the characteristic of the ethers' boiling points? A) Low and lower than alcohols'. B) High and higher than alcohols'. C) High and lower than alcohols'. D) Low and higher than alcohols'. Show Answer Correct Answer: A) Low and lower than alcohols'. 7. BHA and BHT are antioxidants derived from plants. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. Phenol can be distinguished from ethanol by the reactions with ..... A) Br2/water. B) Na. C) Neutral FeCl3. D) All the above. Show Answer Correct Answer: D) All the above. 9. Which halogenoalkane is the most reactive? A) Halogenoalkane with chlorine (Cl). B) Halogenoalkane with fluorine (F). C) Halogenoalkane with bromine (Br). D) Halogenoalkane with iodine (I). Show Answer Correct Answer: B) Halogenoalkane with fluorine (F). 10. (9.16) What is the reaction mechanism of an epoxide reaction with ACIDS A) Sn1. B) Sn2. C) E1. D) E2. E) Inconclusive. Show Answer Correct Answer: E) Inconclusive. 11. (9.11) how does acidity and reactivity increase in alkyl halides A) Increase down the group. B) Decrease down the group. C) All the above. D) None of the above. Show Answer Correct Answer: A) Increase down the group. 12. (9.13) How do tosylates react with alcohols? A) Elimination. B) Addition. C) Subtitution. D) Redox. Show Answer Correct Answer: C) Subtitution. 13. What is formed when an alcohol reacts with a carboxylic acid? A) Aldehyde. B) Ester. C) Ketone. D) Alkane. Show Answer Correct Answer: B) Ester. 14. Assertion:ter-Butyl methyl ether is not prepared by thereaction of ter-butyl bromide with sodium methoxide.Reason:Sodium methoxide is a strong nucleophile. 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: B) Assertion is correct, reason is correct; reason is not acorrect explanation for assertion. 15. Propan-1-ol boils at a higher temperature that propan-2-ol. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. Which of the class of alcohols can be produced ketone when reacted with acidified KMnO$_{4 }$and heated? A) Primary alcohol. B) Secondary alcohol. C) Tertiary alcohol. D) All the class of alcohols. Show Answer Correct Answer: B) Secondary alcohol. 17. When 1-pentanol is heated with HCl/ZnCl$_{2}$, 1-chloropentane is the major product. This is an ..... reaction, and ..... is also produced as product. A) SN1, H$_{2}$O. B) SN2, H$_{2}$O. C) SN1, H$_{2}$. D) SN2, H$_{2}$. E) E2, H$_{2}$. Show Answer Correct Answer: B) SN2, H$_{2}$O. 18. Which of the following statements is NOT TRUE of methanol? A) Methanol occurs naturally in many fruits and vegetables. B) Small amounts of methanol occur naturally in many living organisms as part of their metabolic processes. C) It is mostly used to create fuel, solvents and antifreeze. D) It is use for human consumption. Show Answer Correct Answer: D) It is use for human consumption. 19. Which of the following cannot be made by using Williamson synthesis A) Methoxybenzene. B) Benzyl p-nitrophenyl ether. C) Tert-Butyl methyl ether. D) Di-tert-butyl ether. Show Answer Correct Answer: D) Di-tert-butyl ether. 20. When CH3CH2Br reacts with sodium acetylide, the main product is:(1) 1-Butyne (2) 1-Butene (3) 2-Butene (4) 2-Butyne A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: A) 1. 21. Which is not present in Grignard reagent? A) Methyl group. B) Magnesium. C) Halogen. D) -COOH group. Show Answer Correct Answer: D) -COOH group. 22. What reagent adds a halogen (X) and alcohol in the Markovnikov, Anti position? A) X2. B) X2 + H2O. C) HX. D) HX + ROOR. Show Answer Correct Answer: B) X2 + H2O. 23. HOW WILL YOU CONVERT PHENOLS INTO BENZENE. A) By reacting it With Zn dust. B) By reacting it With Cu dust. C) By reacting it With Al dust. D) By reacting it With Na dust. Show Answer Correct Answer: A) By reacting it With Zn dust. 24. What is not a common use of alcohol? A) Alcoholic drinks. B) As fuel for cars. C) A solvent for organic compounds. D) Make soft drinks. Show Answer Correct Answer: D) Make soft drinks. 25. 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. ← 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 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 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books