Free NEET Chemistry multiple-choice questions on Ethers. Attempt each question and reveal the answer with a full explanation.
Ethanol is converted into diethyl ether in the presence of concentrated H 2SO 4 at which specific temperature? 413 K 443 K 373 K 273 K The heating of phenyl methyl ether with HI produces: Phenol and CH 3I Iodobenzene and CH 3OH Benzene and CH 3OI Iodobenzene and CH 3I The reaction of CH 3CH 2OCH 3 with HI at high temperature gives: C 2H 5I and CH 3I C 2H 5OH and CH 3I C 2H 5I and CH 3OH C 2H 5OH and CH 3OH The reaction of CH 3ONa with (CH 3) 3CCl yields mainly: 2-Methylprop-1-ene tert-Butyl methyl ether tert-Butyl alcohol Isobutane Reaction of anisole with HI yields: Phenol and CH 3I Iodobenzene and CH 3OH Phenol and CH 4 Iodobenzene and CH 4 In the Williamson synthesis of ethers, the reaction between sodium methoxide and tert-butyl bromide mainly yields: 2-Methylpropene Methyl tert-butyl ether tert-Butyl alcohol Dimethyl ether Which of the following ethers is most likely to form a peroxide when exposed to air? Di-isopropyl ether Dimethyl ether Methyl n-propyl ether Diphenyl ether The reaction of methyl t -butyl ether with HI gives: Methyl alcohol and t -butyl iodide Methyl iodide and t -butyl alcohol Methyl iodide and t -butyl iodide Methyl alcohol and t -butyl alcohol The reaction of diethyl ether with PCl 5 upon heating produces: Ethyl chloride and POCl 3 Ethyl alcohol and POCl 3 Ethyl chloride and PCl 3 Ethylene and POCl 3 Identify the major product formed when 1-ethoxy-2-methylpropane is treated with one equivalent of cold concentrated HI . Ethyl iodide and 2-methylpropan-1-ol Ethanol and 1-iodo-2-methylpropane Ethyl iodide and 1-iodo-2-methylpropane Ethanol and 2-methylpropan-1-ol The reaction of an alkyl halide with silver oxide ( Ag 2O ) in the presence of moisture (moist Ag 2O ) yields an alcohol, but with dry Ag 2O it yields: Ether Aldehyde Ketone Alkane Ethers are stored in brown bottles because on long exposure to air and light, they form explosive: Peroxides Ozonides Oxides Superoxides Which of the following compounds is the most difficult to protonate? Ph-O-Ph H 2O CH 3-O-CH 3 CH 3-OH The reaction of an alkyl halide with dry Ag 2O yields an ether, while with moist Ag 2O it yields: Alcohol Aldehyde Ketone Ester The reaction of diethyl ether with excess of hot concentrated HI yields: Ethyl iodide and H 2O Ethanol Ethyl iodide and Ethanol Iodoform The major organic product in the reaction, CH3-O-CH(CH3)2 + HI -> Product is: CH3OH + (CH3)2CHI ICH2OCH(CH3)2 I | CH3OC (CH3)2 CH3I + (CH3)2CHOH In the reaction: CH3 - CH3 | CH - CH2 - O - CH2 - CH3 + HI - >[Heated] Which of the following compounds will be formed? CH3 - CH3 | CH - CH3 + CH3CH2OH CH3 - CH3 | CH - CH2OH + CH3CH3 CH3 - CH3 | CH - CH2OH + CH3 - CH2 - I CH3 - CH3 | CH - CH2 - I + CH3CH2OH Among the following ethers, which one will produce methyl alcohol on treatment with hot concentrated HI ? CH3-CH2-CH2-CH2-O-CH3 CH3 - CH2 - CH3 | CH - O - CH3 CH3 - CH3 | CH - CH2 - O - CH3 Anisole on cleavage with HI gives Consider the following reaction : Identify products A and B. A = C6H5CH3 and B = C6H5OH A = C6H5CH2OH and B = C6H5I A = C6H5CH2I and B = C6H5OH A = C6H5CH3 and B = C6H5I Reaction of tert-butyl methyl ether with HI gives: tert-Butyl iodide and Methanol tert-Butyl alcohol and Methyl iodide Isobutylene and Methyl iodide tert-Butyl iodide and Methyl iodide Identify the major product of the reaction between Benzyl ethyl ether and HI : Benzyl iodide and Ethanol Benzyl alcohol and Ethyl iodide Iodobenzene and Ethanol Benzyl iodide and Ethyl iodide The reaction of phenol with NaOH followed by treatment with CH 3I yields: Anisole Methyl phenate o-Cresol p-Cresol Zeisel's method is used for the quantitative estimation of which functional group in organic compounds? Methoxy groups ( -OCH 3 ) Alcoholic groups ( -OH ) Carboxyl groups ( -COOH ) Aldehydic groups ( -CHO ) The compound which does not react with sodium metal is: CH 3OCH 3 CH 3CH 2OH CH 3COOH C 6H 5OH Ethylene oxide when treated with Grignard reagent yields:- Secondary alcohol Tertiary alcohol Cyclopropyl alcohol Primary alcohol Among the following sets of reactants which one produces anisole? CH3CHO ; RMgX C6H5OH ; NaOH ; CH3I C6H5OH ; neutral FeCl3 C6H5-CH3 ; CH3COCl ; AlCl3 The reaction Can be classified as :- Williamson ether synthesis reaction Alcohol formation reaction Dehydration reaction Williamson alcohol synthesis reaction The compound A on treatment with Na gives B, and with PCl5 gives C. B and C react together to give diethyl ether. A, B and C are in the order C2H5Cl , C2H6 , C2H5OH C2H5OH , C2H5Cl , C2H5ONa C2H5OH , C2H6 , C2H5Cl C2H5OH , C2H5ONa , C2H5Cl