This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 11 Alcohols – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 19 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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$_{4}$. 2. Alcohols can act as A) Electrophile. B) Nucleophile. C) Both. D) None. Show Answer Correct Answer: C) Both. 3. Which is NOT true of Ethers? A) Relatively unreactive. B) Flammable. C) Highly reactive. D) Used in anesthetics. Show Answer Correct Answer: C) Highly reactive. 4. CH$_{3}$CH$_{2}$OH can be converted into CH$_{3}$CHO by A) Catalytic hydrogenation. B) Treatment with LiAlH$_{4}$. C) Treatment with pyridinium chlorochromate. D) Treatment with KMnO$_{4}$. Show Answer Correct Answer: C) Treatment with pyridinium chlorochromate. 5. When does ethanol exhibit acidic character? A) On reaction with Lucas test. B) On reaction with sodium chloride. C) On reaction with brine solution. D) On reaction with sodium metal. E) On reaction with acetic acid. Show Answer Correct Answer: D) On reaction with sodium metal. 6. What is the reagent for Fehling's test? A) 2, 4-dinitrophenylhydrazine. B) Excess I$_{2}$, NaOH. C) Cu$^{2+}$, OH$^{-}$. D) [Ag(NH$_{3}$)$_{2}$]$^{+}$, OH$^{-}$. Show Answer Correct Answer: C) Cu$^{2+}$, OH$^{-}$. 7. What color would a secondary alcohol turn while reacting with acidified Potassium Dichromate? A) Green. B) Orange. C) Red. D) Clear / No change. Show Answer Correct Answer: A) Green. 8. (9.5) which is an anesthetic? A) Ethanol. B) Diethyl ether. C) Eplerenone. D) Tiotropium. Show Answer Correct Answer: B) Diethyl ether. 9. The benzoylation of phenols in the presence of alkalis is known as ..... reaction. A) Esterification. B) Etherification. C) Gattermann. D) Schotten-Baumann. Show Answer Correct Answer: D) Schotten-Baumann. 10. Phenols are not soluble in which of the following? A) Water. B) Alcohol. C) Ether. D) Sodium hydroxide. Show Answer Correct Answer: A) Water. 11. 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. 12. (9.8) What is used to separate alkenes from alcohols during an alcohol dehydration process A) Melting point. B) Boiling point. C) Density. D) Charge. Show Answer Correct Answer: B) Boiling point. 13. 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$_{4}$. 14. Name the mechanism for the reduction of propanal to propan-1-ol A) Reduction reaction. B) Nucleophilic Addition. C) Nucleophilic Substitution. D) Oxidation reaction. Show Answer Correct Answer: B) Nucleophilic Addition. 15. "squeaky pop" is the observation confirming the presence of which gas? A) O$_{2}$. B) H$_{2}$. C) CO$_{2}$. D) H$_{2}$O. Show Answer Correct Answer: B) H$_{2}$. 16. Phenols produce 2, 4, 6-trinitro phenol using following reagents A) Dil HNO$_{3}$. B) Con HNO$_{3}$. C) Con HNO$_{3}$ + Con H$_{2}$SO$_{4}$. D) Con H$_{2}$SO$_{4}$. Show Answer Correct Answer: C) Con HNO$_{3}$ + Con H$_{2}$SO$_{4}$. 17. 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. 18. 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) Negative, more, nucleophilic. B) Negative, less, electrophilic. C) Positive, more, electrophilic. D) Positive, less, nucleophilic. E) Positive, less, electrophilic. Show Answer Correct Answer: A) Negative, more, nucleophilic. 19. Which of the following name reactions produces salicyldehyde? A) Kolbe's reaction. B) Rosenmund reduction. C) Williamson's synthesis. D) Reimer Tiemann reaction. Show Answer Correct Answer: D) Reimer Tiemann reaction. 20. 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. 21. What catalyst is required for the reaction of primary and secondary alcohols with hydrogen chloride? A) Zinc chloride (ZnCl2). B) Calcium chloride (CaCl2). C) Iron chloride (FeCl3). D) Sodium chloride (NaCl). Show Answer Correct Answer: A) Zinc chloride (ZnCl2). 22. 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. 23. 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) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: A) 1. 24. Primary alcohol can be oxidized to form A) RCHO. B) RCOR. C) RCOOR. D) ROR. Show Answer Correct Answer: A) RCHO. 25. Which pair of molecules will BOTH produce carboxylic acids when fully oxidized by acidified potassium dichromate? A) 1-propanol & 2-propanol. B) Ethanol & 2-propanol. C) 2-propanol & 1-butanol. D) 1-propanol & 1-butanol. Show Answer Correct Answer: D) 1-propanol & 1-butanol. ← 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