This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 11 Alcohols – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 11 Alcohols Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Some countries color denatured alcohol as a label. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 2. Among nitrophenols: A) M-Nitrophenol is the most acidic. B) O-Nitrophenol is the most acidic. C) P-Nitrophenol is the most acidic. D) None of the above. Show Answer Correct Answer: C) P-Nitrophenol is the most acidic. 3. (9.15) Thiols are oxidized into disulfides (RSSR) with ..... and are reduced back into thiols with ..... A) Ox:Br2, ZnRed:I2, Acids. B) Ox:Acids, ZnRed:Br2, I2. C) Ox:Br2, AcidsRed:I2, Zn. D) Ox:Br2, I2Red:Zn, Acids. Show Answer Correct Answer: D) Ox:Br2, I2Red:Zn, Acids. 4. Assertion:Ethers behave as bases in the presence ofmineral acids.Reason:Due to the presence of lone pairs of electrons onoxygen. 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: A) Assertion is correct, reason is correct; reason is a correctexplanation for assertion. 5. To convert propene into propan-1-ol which method cant be used? A) Acid catalysed hydration. B) Hydroboration oxidation. C) Reaction with HBr in presence of peroxide followed by reaction with aq.NaOH. D) All methods can be used. Show Answer Correct Answer: A) Acid catalysed hydration. 6. Ethanediol has a higher boiling point than ethanol. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. Assertion:In Lucas test, 3$^\circ$ alcohols react immediately.Reason:An equimolar mixture of anhyd. ZnCl2 and conc.HCl is called Lucas reagent. 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) (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. 8. Why are phenols more acidic than alcohols? 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. 9. An alcoholic solution of a medication is called an A) Mercaptan. B) Emulsion. C) Isotope. D) Tincture. Show Answer Correct Answer: D) Tincture. 10. The process of converting alkyl halides into alcohols involves ..... A) Addition reaction. B) Substitution reaction. C) Dehydrohalogenation reaction. D) Rearrangement reaction. Show Answer Correct Answer: B) Substitution reaction. 11. What compound would you produce if you oxidized a primary Alcohol? A) Aldehyde. B) Ketone. C) Ester. D) Halogenalkane. Show Answer Correct Answer: A) Aldehyde. 12. Answer true or false to the following statement. The functional group of an ether is an atom of oxygen bonded to two carbon atoms. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 13. Lucas reagent is:(1) anhy. ZnCl2 and NH3 (2) anhy. ZnCl2 and CaCl2 (3) anhy. ZnCl2 and conc. HCl (4) anhy. ZnCl2 and HCl gaS A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 14. Assertion:Ethers do not possess-OH groups and do not form any type of hydrogen bondingReason:Ethers contain hydrogen, directly bonded to oxygen 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: C) If Assertion is correct but Reason is incorrect. 15. Which of the following is used as antifreeze in car radiators? A) Ethanol. B) Glycol. C) Propanol. D) Glycerol. Show Answer Correct Answer: B) Glycol. 16. All the members of alcohol homologous series have similar chemical properties. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. An organic compound X on treatment with PCC in dichloromethane gives compound Y. Compound Y reacts with I2 and alkali to form triiodomethane. The compound X is A) CH$_{3}$CH$_{2}$OH. B) CH$_{3}$CHO. C) CH$_{3}$COCH$_{3}$. D) CH$_{3}$COOH. Show Answer Correct Answer: A) CH$_{3}$CH$_{2}$OH. 18. Why ethanol is prepared in anaerobic conditions A) Ethanol is more reactive. B) Ethanol is oxidised to ethanal. C) Ethanol is oxidised to ethanoic acid. D) Ethanol is oxidised to ether. Show Answer Correct Answer: C) Ethanol is oxidised to ethanoic acid. 19. The enzyme that converts sucrose to glucose and fructose is A) Zymase. B) Diastase. C) Invertase. D) Maltase. Show Answer Correct Answer: C) Invertase. 20. An unknown alcohol is treated with "Lucas reagent" to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanism? A) Tertiary alcohol by SN2. B) Secondary alcohol by SN1. C) Tertiary alcohol by SN1. D) Secondary alcohol by SN2. Show Answer Correct Answer: C) Tertiary alcohol by SN1. 21. Assertion:Sucrose is called an invert sugar.Reason:On hydrolysis, sucrose bring the change in thesign of rotation from dextro (+) to laevo(-). 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: A) Assertion is correct, reason is correct; reason is a correctexplanation for assertion . 22. (9.17-9.18) What is used to treat asthma A) Zileuton. B) Benzo[a]pyrene. C) All the above. D) None of the above. Show Answer Correct Answer: A) Zileuton. 23. Which of the following compounds is also called carbolic acid? A) Methanol. B) Phenol. C) Picric acid. D) Acetic acid. Show Answer Correct Answer: B) Phenol. 24. Cholesterol is an organic molecule that occurs in the blood stream. What type of compound is cholesterol? A) An acid. B) An alcohol. C) An alkane. D) An alkene. Show Answer Correct Answer: B) An alcohol. 25. Assertion:At isoelectric point, the amino group does notmigrate under the influence of electric field.Reason:At isoelectric point, amino acid exists as azwitterion. 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: A) Assertion is correct, reason is correct; reason is a correctexplanation for assertion. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books