Tiêu đề 11.ALCOHOLS, PHENOLS AND ETHERS.pdf ✅

User Restrictions: Not authorized to transfer to any third party, Not authorized to go for any resale of this document without permission. Document is protected from being unauthorized use, for any help please contact Mr. SEKHAR , +919206306398. We are not responsible for lose of data while deprotecting the document without any permission from author. Use only for question paper preparation, worksheet preparation... 11.ALCOHOLS, PHENOLS AND ETHERS Single Correct Answer Type 1. An ether is more volatile than an alcohol having the same molecule formula. This is due to a) Intermolecular hydrogen bonding in alcohols b) Dipolar character of ethers c) Alcohols having resonance structures d) Intermolecular hydrogen bonding in ether 2. Which reagent can distinguish C2H5OH and φ OH? a) SOCl2 b) CH3COCl c) (CH3CO)2O d) CH3COOH 3. Maximum dehydration takes place in that of a) b) c) d) 4. Which reaction will occurs? a) b) c) d) None of these 5. The main product of the following reaction is C6H5CH2CH(OH)CH(CH3 )2 Conc.H2SO4 → ? a) b) c) d) 6. In the following sequence of reactions,

User Restrictions: Not authorized to transfer to any third party, Not authorized to go for any resale of this document without permission. Document is protected from being unauthorized use, for any help please contact Mr. SEKHAR , +919206306398. We are not responsible for lose of data while deprotecting the document without any permission from author. Use only for question paper preparation, worksheet preparation... a) b) c) d) CH3OH + CH3I 16. Which one of the following gases is liberated when ethyl alcohol is heated with methyl magnesium iodide? a) Methane b) Ethane c) Carbon dioxide d) Propane 17. In the reaction, C2H5OH Cu → 300°C X (vapour) The molecular formula of X is a) C4H6O b) C4H10O c) C2H4O d) C2H6 18. Alcohols cannot be prepared from a) C2H5Br + aq. KOH → b) (CH3 )2C = O LiAlH4 → c) O || CH3 − C − OCH3 Na/EtOH → d) CH3CH2Cl H2O → 19. The cleavage of an aryl-alkyl ether with cold HI gives a) Alkyl iodide and water b) Aryl iodide and water c) Alkyl iodide, aryl iodide and water d) Phenol and alkyl iodine 20. Acetic anhydride reacts with diethyl ether in the presence of anhydrous AlCl3 to give a) CH3CH2COOH b) CH3CH2COOCH2CH3 c) CH3COOCH3 d) CH3COOC2H5 21. Which of the following represents the Dow process for the manufacture of phenol? a) b) c) d) None of the above 22. In the reaction, The products are
User Restrictions: Not authorized to transfer to any third party, Not authorized to go for any resale of this document without permission. Document is protected from being unauthorized use, for any help please contact Mr. SEKHAR , +919206306398. We are not responsible for lose of data while deprotecting the document without any permission from author. Use only for question paper preparation, worksheet preparation... a) b) c) d) 23. In the reaction, CH3OH Oxidation → A NH3 → B; A and B are a) HCHO,HCOONH4 b) HCOOH,HCOONH4 c) HCOOH,HCONH2 d) HCHO,HCONH2 24. Phenol is soluble in water because a) Of weak hydrogen bonding between phenol and water molecules b) Of intermolecular hydrogen bonding between phenol molecules c) If has a higher boiling point than that of water d) None of the above 25. Phenol NaNO2/H2SO4 → B H2O → C NaOH → D Name of the above reaction is a) Liebermann’s reaction b) Phthalein fusion test c) Reimer-Tiemann reaction d) Schotten-Baumann reaction 26. RCH2CH2OH can be converted to RCH2CH2COOH by the following sequence of steps a) PBr3, KCN,H3O + b) PBr3, KCN,H2/P + c) KCN,H3O + d) HCN, PBr3,H3O + 27. Which one of the following will most readily be dehydrated in acidic conditions? a) b) c) d) 28. The correct order of acid strength of the following compounds is I. Phenol II. p-cresol III. m-nitrophenol IV. p-nitrophenol a) IIII > II > I > IV b) IV > III > I > II c) II > IV > I > III d) I > II > IV > III 29. Propan-1-ol can be prepared from propane by a) H2O/H2SO4 b) Hg(OAc)2H2O followed by NaBH4 c) B2H6 followed by H2O2 d) CH3CO2H/H2SO4 30. Salicyl aldehyde is obtained when phenol is heated with CHCl3 and aqueous NaOH. This reaction is known by which name? a) Carbyl amine reaction b) Hofmann’s reaction c) Reimer-Tiemann reaction d) Kolbe-Schmidt reaction