(2) $\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{CH}=\mathrm{CH}-\mathrm{Br}+\mathrm{CH}_{3}-\mathrm{ONa}$ Notify me of follow-up comments by email. Ans : Although butane and propanol have comparable molecular masses( 58 and 60 respectively) but in propanol polar -OH group is present ,due to which strong intermolecular hydrogen bonding exists between its molecules. The original compound showed these properties also: Due to greater electronegativity of sp2-hybridizad carbon atoms of the benzene ring, di–aryl ethers are not attacked by nucleophiles like I−, A) Phenol + dimethyl sulphate in presence of a base, B) Sodium phenoxide is treated with methyl iodide, D) Reaction of methyl magnesium iodide with phenol, Phenol has active (acidic) hydrogen so it reacts with CH3MgI to give CH4, and not anisole C6H5OH+CH3MgI→CH4+C6H5OMgI. Download MCQs for NEET Chemistry Alcohol Phenol and Ether, Get MCQs for Alcohol Phenol and Ether Chemistry for important topics for all chapters based on 2020 syllabus and pattern. Save my name, email, and website in this browser for the next time I comment. Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...Sol. Electron withdrawing group stabilises the benzene ring due to delocalisation of charge. The test which is used to distinguish between primary, secondary and tertiary alcohols, a) Lucas Test b) Iodoform test, c) Benedicts test d) Baeyer’s test, a) Water b) Organic acid, c) HX d) Both a & b, 75. 12. ALCOHOLS PHENOL And ETHERS University Of Sydney. H2SO4 d) None of these, 67. X on treatment with $\left(\mathrm{CH}_{3} \mathrm{CO}\right)_{2} \mathrm{O}$ in the presence of catalytic amount of $\mathrm{H}_{2} \mathrm{SO}_{4}$ produces : Phenol reacts with methyl chloroformate in the presence of NaOH to form product A. 934 Views. As a result non-polar part of the molecule becomes less prominent and hence it can have stronger intermolecular H-bonds with water molecules through its O-H group . When methoxy benzene reacts with HI , phenol and Iodomethane is formed . Before initiating the examination there are few key aspects which the... CBSE has launched a Quiz on Mahatma Gandhi. This method involves the treatment of alkyl halide with sodium or potassium salt of alcohol or phenol. (3) 2–Methylpropan–2–ol 30. AIEEE-2009 D gives aldol condensation but not, Compound A reacts with alc. c) Insertion d) Inhibition. at high temperatures to give a phenoxide salt, which is acidified to phenol. Alcohola of low molecular weight are. 11. (3) (5) How benzene is converted to Chlorobenzene and phenol ? Answers. %���� Chapter 5 Multiple Choice Questions Oxford University Press. x��}[�l�q�;��y Since compound A gives white ppt. Major product obtained in the reaction is. (2). 2. Or Who is James Hilton? 69. c) Secondary alcohol d) Tribydric alcohol. Ortho-nitrophenol is more volatile due to weak intramolecular H-bonding whereas para-nitrophenol is less volatile due to strong intermolecular H-bonding which causes the association of molecules. If a blood red colour is obtained, the original alcohol is primary. (3) $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{Br}+\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}_{2}-\mathrm{ONa}$ During the dehydration of alcohols, relatively, a) Ether b) Olefin c) Paraffin d) None, 80. Consider the following reaction : Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...Sol. This method involves the treatment of alkyl halide with sodium or potassium salt of alcohol or phenol. The formation of Acetaldehyde from ethanol is called, a) Oxidation b) Reduction, c) Addition d) Substitution. Phenol on treatment with $\mathrm{CO}_{2}$ in the presence of NaOH followed by acidification produces compound X as the major product. AIEEE-2012 Your email address will not be published. H2SO4 → [CH3-CH-CH3] —–→CH3-CH-CH3 +H2SO4, Propene (Isopropyl hydrogen propan-2-ol Sulfate). Ether when heated with acetyl chloride in the presence of anhydrous zinc chloride, react to produce alkyl halide and ester. Jee-Main-2018 Alcohol reacts with carboxylic acids, acid an hydrides and acid halides to form, a) Ether b) Ketone, b) Esters d) Aldehyde, 45. Alcohol Phenol and Ether MCQ Sheet 1. group more stabilize the phenoxide ion at p-position. MCQ's with answers from chapter 11 chemical chemistry book 1 for FSC pre engineering and pre medical for Board of Intermediate and Secondary education.
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