Alcohols, Phenols and Ethers

• Propanol has a higher boiling point than butane due to intermolecular H-bonding.
• Alcohols are more soluble in water than hydrocarbons due to H-bonding.
• Steam volatility depends on the type of phenol.
• Assertion is true but reason is false.
• Both assertion and reason are true but the reason is not a correct explanation of assertion.
• Both assertion and reason are false.
• Both assertion and reason are true and the reason is a correct explanation of assertion.
• Phenol is more acidic than ethanol due to H-bonding.
• Ortho nitrophenol is more acidic than ortho methoxy phenol due to the -NO2 group being a strong -R group.
• Picric acid is a product when phenol is treated with chloroform in the presence of NaOH.
• Acid dehydration of ethanol at 443K and 413K respectively produce ethene and ethane as major products.
• Phenol is more acidic than cyclohexanol due to the more polar 'OH' bond.
• The mechanism of the following reaction is E2 mechanism.
• The least soluble in water is tert-butyl alcohol.
• The reaction CH3-CH2-O-CH3 + CH3-I follows S N1 mechanism.
• The products of the following reaction are CH3-CH2-OH and CH3-I.
• Br2, water, dilute HNO3, NaOH are used to distinguish between phenol and ethanol.
• P and Q in the following reaction are (CH3)3C-I and CH3CH2OH.
• Phenol is more acidic than aliphatic alcohol because phenoxide ion is more stable than alkoxide ion.
• Phenol is more acidic than ethyl alcohol because the 'OH' group is attached to a sp 2 carbon atom.
• Phenol and anisole can be distinguished using Br2, water, dilute HNO3, NaOH.
• The major product in the following reaction is CH3CH2CH2CH2CH3.
• The boiling point of a compound can be determined by arranging it in the correct order.
• Pentan-1-ol, n-butane, Pentanal, Ethoxyethane can be arranged in the correct order of boiling point.
• Para-Cresol is less acidic than phenol due to -OCH3, an electron donating group.
• Phenol can be converted to Salicylaldehyde directly by Reimer - Tiemann reaction, Kolbe’s reaction, Sandmeyer’s reaction, or Friedel - Crafts alkylation.
• Methanol has a higher boiling point than Butan-2-ol.
• Ethers are soluble in water due to the production of a hydrogen bond with water.
• Carbon-oxygen bond length in phenol is slightly less than methanol due to partial double bond character on account of conjugation of unshared electron pair of oxygen with aromatic ring.
• Pentan-1-ol has a higher boiling point than Butan-1-ol.
• Ethoxybenzene can’t be prepared by Williamson’s ether synthesis.
• NO2 group at ortho position decreases the acidic strength of phenol due to its electron withdrawing nature.
• R can be Pent-1-ene, Pent-2-ene, or Both a and b.
• The most suitable reactant for the preparation of tert-butyl methyl ether by Williamson’s ether synthesis is Phenol.
• Ethanol has a higher boiling point than Propan-1-ol.
• Both assertion and reason are true and the reason is a correct explanation of assertion.
• In the compound CH3OH, the COH bond angle is greater than the regular tetrahedral bond angle.
• 3,5-dinitrophenol has a higher acidic strength than 4-methylphenol.
• Boiling point of alcohol is more than that of ether having same molecular mass due to alcohol undergoing hydrogen bonding with itself.
• 3-nitrophenol has a higher acidic strength than 3-nitrophenol.