Hydrocarbons, Alcohols, and Phenols Activity PDF

Activity: Summary- Hydrocarbons, alcohols, and phenols Name: YAZMINE SHADEN S. MAYA Section: BSBIO1A Group number: Date: MAY 28, 2024 I. Identify the correct compounds using the choices in the box below to complete the flowchart. (Write your answer in the space provided in the las...

Activity: Summary- Hydrocarbons, alcohols, and phenols Name: YAZMINE SHADEN S. MAYA Section: BSBIO1A Group number: Date: MAY 28, 2024 I. Identify the correct compounds using the choices in the box below to complete the flowchart. (Write your answer in the space provided in the last page) A. Hydrocarbons B. Alcohols and phenols - Saturated - phenols - Unsaturated - primary alcohol - aromatics - secondary alcohol - alkenes/alkynes - tertiary alcohol I. Multiple choice: choose the letter of the correct answer. (Write your answer in the space provided in the last page) 1. Hydrocarbons consist of ? a. C and N b. N and O c. O and H d. H and C 2. Which of the following is TRUE about saturated hydrocarbons ? a. It is saturated with pi bonds b. It only contains sigma bonds c. It is aromatic in nature d. It only contains triple bonds 3. Which of the following compounds is a saturated hydrocarbon ? a. isopentane b. 2-pentene c. 1-pentyne 4. Which of the following chemicals will react with saturated hydrocarbons at room temperature ? a. KMnO4 b. Na2Cr2O7 c. H2SO4 d. none of the above 5. Which of the following is NOT an unsaturated hydrocarbon ? a. alkene c. alkyne b. cycloalkene d. cycloalkane 6. The characteristic reactions of unsaturated hydrocarbons takes place in ? a. the pi bond b. the sigma bond c. the h bond d. the ionic bond 7. Which of the following is TRUE when an aromatic hydrocarbon undergoes an ignition test ? a. It will produce a non-sooty flame b. It will produce a sooty flame c. It will not ignite d. It will evaporate immediately 8. What are the reagents used for Baeyer’s test ? a. NaOH and KMnO4 b. Na2Cr2O7 and H2SO4 c. HCl/ ZnCl d. FeCl3 9. Which of the following is TRUE about Baeyer’s test ? a. it is a method for detecting hydroxyl (-OH) groups b. it is a method for detecting radiation c. it is a method for detecting unsaturation d. it is a method for detecting phenols 10. Which of the following will produce a brown MnO2 precipitate in Baeyer’s test ? a. benzene b. 2-pentene c. cyclohexane 11. Which of the following will have a sooty flame in Ignition test but will have a negative result in Baeyer’s test? a. benzene b. 2-pentene c. cyclohexane 12. Alcohols are organic compounds containing ? a. hydroxyl (-OH) group bonded to an alkyl carbon b. hydroxyl (-OH) group bonded to a benzene ring c. hydroxyl (-OH) group bonded to an carbonyl carbon d. hydroxyl (-OH) group bonded to a hydrogen atom 13. Which of the given compounds is a secondary alcohol ? b. ethanol b. isopropanol c. phenol 14. What are the reagents used for Chromic acid tests ? a. NaOH and KMnO4 b. H2CrO4 c. HCl/ ZnCl d. FeCl3 15. Which of the following is true for tertiary alcohols in Chromic acid tests ? a. it is oxidized into a ketone b. it is oxidized into a carboxylic acid c. it is oxidized into an aldehyde d. no reaction occurs 16. Which of the following compounds will produce a ketone in a Chromic acid test ? a. ethanol b. isopropanol c. isobutanol 17. What are the reagents used for Lucas’s test ? a. NaOH and KMnO4 b. H2CrO4 c. HCl/ ZnCl d. FeCl3 18. The Lucas test reacts with alcohols in SN1 reaction and gives a quick positive result due to which factor? a. Lowest boiling point b. Highest level of saturation c. Stable electronic resonance of carbocation d. Stable benzene ring resonance 19. Which of the following compounds react immediately to the Lucas reagent to form an immiscible upper layer of alkyl chloride? a. Primary Alcohol b. Secondary Alcohol c. Tertiary Alcohol d. Quaternary Alcohol 20. Which of the following will give a positive result on chromic acid test but not in Lucas’s test a. ethanol b. isopropanol c. isobutanol 21. Which constituent is directly bonded to the benzene ring in phenols? a. -CH3 b. -NH2 c. -OH d. -Cl 22. Why are phenols not considered aromatic alcohols? a. The benzene ring is highly saturated b. The -OH group is directly attached to the benzene ring c. The -CH3 group is directly attached to the benzene ring d. The benzene ring is highly aromatic 23. Which of the following is NOT a phenolic compound? a. Thymol b. catechol c. benzyl alcohol 24. Which of the following is TRUE about phenols a. It is more acidic than alcohols b. It is more basic than alcohols c. it has the same pH with primary alcohols d. it melts and freezes at room temperature 25. Which of the following is the conjugate base of phenol b. phenoxide ion b. benzyl carbocation c. benzyl carbanion 26. Phenols readily react with which of the following compounds to produce a ferric phenoxide salt? a. FeCl2 b. FeCl3 c. FCl3 d. FCl 27. Which color of the ferric phenoxide salt confirms the presence of a phenol? a. Colorless b. Red c. Violet d. Green  I. answer SATURATED 1. _________________ PHENOLS 5._________________ 2._________________ UNSATURATED 6._________________ TERTIARY ALCOHOL 3._________________ ALKENES/ALKYNES 7._________________ SECONDARY ALCOHOL 4._________________ AROMATICS PRIMARY ALCOHOL 8._________________ II. answer 1. D 14. B 2. B 15. D 3. A 16. B 4. D 17. C 5. D 18. C 6. A 19. C 7. B 20. A, C 8. A 21. C 9. C 22. B 10. B 23. C 11. A 24. A 12. A 25. B 13. B 26. B 27. C