This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 11 Alcohols – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is not a position isomer of heptan 1-ol A) Heptan 2-ol. B) Heptan 2-ol. C) Heptan 3-ol. D) 2-methyl hexan 1-ol. Show Answer Correct Answer: D) 2-methyl hexan 1-ol. 2. 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. 3. 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. 4. 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:Chloroethene. B) X:Chloroethane, Y:Ethanol, Z:Sodium ethanoate. C) X:Ethanol, Y:Sodium ethoxide, Z:Chloroethane. D) X:Ethanol, Y:Sodium methanoate, Z:Chloroethane. E) X:Ethanol, Y:Sodium methoxide, Z:Chloroethane. Show Answer Correct Answer: C) X:Ethanol, Y:Sodium ethoxide, Z:Chloroethane. 5. 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) Hydrocarbon. B) Haloalkane. C) Alcohol. D) Ether. Show Answer Correct Answer: C) Alcohol. 6. 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. 7. Which one is Lucas reagent? A) Cold dilute alkaline KMnO$_{4}$. B) Con.HCl / anhydrous ZnCl$_{2}$. C) FeSO$_{4}$ / H$_{2}$O$_{2}$. D) Anhydrous AlCl$_{3}$. Show Answer Correct Answer: B) Con.HCl / anhydrous ZnCl$_{2}$. 8. Methanol can be obtained from A) Water gas. B) Destructive distillation of wood. C) Methane. D) All. Show Answer Correct Answer: D) All. 9. Bond length of C-O Bond in phenol is shorter than that in methanol A) C-O bond polarity is more in phenol as compared with that of methanol. B) C-O bond enthalpy is more in phenol as compared to that of methanol. C) Sp2 hybrid C in phenol than sp3 hybrid C in methanol. D) C-O bond has more electron density in phenols than that of methanol. Show Answer Correct Answer: C) Sp2 hybrid C in phenol than sp3 hybrid C in methanol. 10. 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. 11. What is the IUPAC name of quinol? A) Benzene-1, 3-diol. B) Catechol. C) Benzene-1, 2-diol. D) Benzene-1, 4-diol. E) Resorcinol. Show Answer Correct Answer: D) Benzene-1, 4-diol. 12. What is the order of adding the reagents in Victor Meyer's test? A) AgNO$_{2}$, P/I$_{2}$, KOH, HNO$_{2}$. B) P/I$_{2}$, KOH, HNO$_{2, }$AgNO$_{2}$. C) P/I$_{2}$, AgNO$_{2, }$HNO$_{2, }$KOH,. D) P/I$_{2}$, AgNO$_{2, }$KOH, HNO$_{2, }$. Show Answer Correct Answer: C) P/I$_{2}$, AgNO$_{2, }$HNO$_{2, }$KOH,. 13. What is formed when you oxidise a secondary alcohol A) Aldehyde. B) Ketone. C) Carboxylic Acid. D) Nothing. Show Answer Correct Answer: B) Ketone. 14. 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. 15. 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) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: A) 1. 16. The functional group made from alcohols and carboxylic acids A) Esters. B) Carbocilic acids. C) Ethers. D) Alkynes. Show Answer Correct Answer: A) Esters. 17. 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. 18. Which of the following compounds reduces Ag$^{+}$ ions to metallic Ag in ammoniacal silver nitrate solution? A) Aldehyde. B) Ketone. C) Alkene. D) Carboxylic acid. Show Answer Correct Answer: A) Aldehyde. 19. Which one of the following will produce a primary alcohol by reacting with Methyl magnesium iodide? A) Acetone. B) Methyl cyanide. C) Ethylene oxide. D) Ethyl acetate. Show Answer Correct Answer: C) Ethylene oxide. 20. 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. 21. Sulfur analogs of alcohols containing an-SH functional group in place of an-OH group A) Alcohols. B) Thiols. C) Ether. D) Phenols. Show Answer Correct Answer: B) Thiols. 22. Phenol is obtained by heating aqueous solution of which of the following? A) Aniline. B) Benzene diazonium chloride. C) Benzoic acid. D) Benzyl alcohol. Show Answer Correct Answer: B) Benzene diazonium chloride. 23. (9.4) At what point do alcohols become insoluble in water? A) >3C. B) >4C. C) >5C. D) >6C. Show Answer Correct Answer: C) >5C. 24. Which of the following reactions will yield phenol? A) . B) . C) . D) . Show Answer Correct Answer: A) . 25. 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. ← 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 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 10Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books