Objective Questions

Questions (1999)

#	Question	Topic	Actions
1101	Which of the following describes a triple bond?	Practice Questions	View
1102	What two atomic orbitals or hybrid atomic orbitals overlap to form the carbon-c…	Practice Questions	View
1103	Which of the following statements is not true about propyne, HC–C≡CH3?	Practice Questions	View
1104	How many distinct terminal alkynes exist with a molecular formula of C5H8?	Practice Questions	View
1105	How many distinct internal alkynes exist with a molecular formula of C6H10?	Practice Questions	View
1106	Which is the correct order of decreasing acidity in the following compounds? A.…	Practice Questions	View
1107	Which of the following compounds is the major product when 1-hexyne is treated …	Practice Questions	View
1108	The reagent needed to convert 2-butyne to cis-2-butene is :	Practice Questions	View
1109	Among the compounds water, 1-butyne, 2-butyne, and ethane, which are stronger a…	Practice Questions	View
1110	What is the product when 3-heptyne reacts with the Lindlar catalyst?	Practice Questions	View
1111	In the addition of hydrogen bromide to alkynes, which of the following species …	Practice Questions	View
1112	Starting with 2-butene, which of the following is the best method for preparing…	Practice Questions	View
1113	Which of the following hydrocarbons has acidic hydrogens?	Practice Questions	View
1114	Lindlar's catalyst is	Practice Questions	View
1115	The higher reactivity of an alkene or alkyne, as compared to an alkane, is due …	Practice Questions	View
1116	Which of the following statements about alkenes and alkynes is correct?	Practice Questions	View
1117	Which of the following sequences regarding acid-strength is correct?	Practice Questions	View
1118	1,2-Dichloroethane reacts with excess of NaNH2 to form	Practice Questions	View
1119	Propyne is formed by	Practice Questions	View
1120	Which of the following compounds on hydrolysis gives acetylene?	Practice Questions	View
1121	Which of the following compounds on hydrolysis gives propyne?	Practice Questions	View
1122	Which one of the following compounds will (a) decolorizes dilute cold KMnO4 ; (…	Practice Questions	View
1123	Ethylene and acetylene can be distinguished by using	Practice Questions	View
1124	1-Butyne can be distinguished from 2-butyne by using	Practice Questions	View
1125	1-Butyne reacts with	Practice Questions	View
1126	Propyne can be converted to propene by using	Practice Questions	View
1127	2-Butyne undergoes catalytic hydrogenation in the presence of Lindlar's catalys…	Practice Questions	View
1128	Addition of two moles of HCl to propyne gives :	Practice Questions	View
1129	Propyne reacts with aqueous H2SO4 in the presence of HgSO4 to form	Practice Questions	View
1130	Acetylene reacts with water in the presence of sulfuric acid and mercuric sulfa…	Practice Questions	View
1131	Which of the following compounds will react with ammoniacal silver nitrate?	Practice Questions	View
1132	Which of the following compounds does not react with ammoniacal AgNO3 solution?	Practice Questions	View
1133	Which of the following compounds reacts with ammoniacal cuprous chloride to giv…	Practice Questions	View
1134	Ozonolysis of 2-butyne gives	Practice Questions	View
1135	Which alkyne yields propanoic acid as the only product upon treatment with ozon…	Practice Questions	View
1136	When acetylene is passed through hot iron tube at 400°C, it gives	Practice Questions	View
1137	When propyne is passed through hot iron tube at 400°C, it gives	Practice Questions	View
1138	The monomer for Neoprene is	Practice Questions	View
1139	A compound, C4H6, reacts with bromine and forms a white precipitate with ammoni…	Practice Questions	View
1140	Which of the following correctly ranks the cycloalkanes in order of increasing …	Practice Questions	View
1141	Which of the following has two equatorial alkyl substituents in its most stable…	Practice Questions	View
1142	Which one of the following is not a metal catalyst for the hydrogenation of an …	Practice Questions	View
1143	What is(are) the product(s) in the Pd-catalyzed hydrogenation of 1,2-dimethylcy…	Practice Questions	View
1144	Which of the following is not a possible reaction of a carbocation?	Practice Questions	View
1145	Addition of HCl to 3-methyl-1-pentene gives two products. One of these is 2-chl…	Practice Questions	View
1146	Predict which of the following alkenes reacts the fastest with HCl?	Practice Questions	View
1147	The hydroboration-oxidation reaction can be characterized as the to an alkene.	Practice Questions	View
1148	A compound, C15H24, is reacted with excess hydrogen using a metal catalyst. One…	Practice Questions	View
1149	The reaction of 1-butene with bromine, Br2, in aqueous solution gives primarily…	Practice Questions	View
1150	Which brief statement most accurately describes why alkenes react the way they …	Practice Questions	View
1151	Which of the following poisonous gas is formed when chloroform is exposed to li…	Practice Questions	View
1152	Freon-12, CCl2F2, is used as a	Practice Questions	View
1153	Which of the following compounds has been suggested as causing depletion of the…	Practice Questions	View
1154	Which of the following reagents cannot be used to prepare an alkyl chloride fro…	Practice Questions	View
1155	2-Propanol reacts with KBr and concentrated H2SO4 to give	Practice Questions	View
1156	The best way to prepare 1,2-Dibromoethane is to treat :	Practice Questions	View
1157	Alkyl halides undergo	Practice Questions	View
1158	n-Propyl iodide reacts with sodium ethoxide to give :	Practice Questions	View
1159	1-Bromobutane reacts with alcoholic KOH to mainly give	Practice Questions	View
1160	2-Bromobutane reacts alcoholic KOH to mainly give	Practice Questions	View
1161	Isopropyl bromide reacts with alcoholic KOH to give	Practice Questions	View
1162	2,2-Dichloropropane reacts with aqueous KOH to give	Practice Questions	View
1163	1,1-Dichloropropane reacts with aqueous KOH to give	Practice Questions	View
1164	Which of the following compounds will not give a white precipitate with alcohol…	Practice Questions	View
1165	Which of the following compounds will give a white precipitate with alcoholic A…	Practice Questions	View
1166	Carbylamine test involves heating a mixture of	Practice Questions	View
1167	When chloroform is heated with aqueous NaOH, it gives	Practice Questions	View
1168	Which alkyl halides react most readily by nucleophilic substitution?	Practice Questions	View
1169	Which of the following factors influence whether a reaction will proceed by an …	Practice Questions	View
1170	Which compound reacts most rapidly by an SN1 mechanism?	Practice Questions	View
1171	Which of the following compounds would react most rapidly in an SN2 reaction?	Practice Questions	View
1172	There are 8 isomers that have the molecular formula C5H11Br. How many of these …	Practice Questions	View
1173	Which of the following statements is correct for a saturated alkyl halide?	Practice Questions	View
1174	Which of the following best describes the carbon-chlorine bond of an alkyl chlo…	Practice Questions	View
1175	Which of the following is a secondary alkyl halide?	Practice Questions	View
1176	How should CH3CHClCH2CH3 be classified?	Practice Questions	View
1177	Which of the following will have the lowest boiling point?	Practice Questions	View
1178	Which of the following is not correct concerning substitution and elimination r…	Practice Questions	View
1179	Which of the following statements concerning SN2 reactions of alkyl halides is …	Practice Questions	View
1180	Which of the following correctly reflects relative stabilities of carbocations?	Practice Questions	View
1181	Which of the following species is most reactive in a SN2 reaction?	Practice Questions	View
1182	Which of the following is the best leaving group?	Practice Questions	View
1183	Which of the following is the strongest nucleophile in an aqueous solution?	Practice Questions	View
1184	Which of the following is the best nucleophile in water?	Practice Questions	View
1185	Which of the following compounds will undergo an SN2 reaction most readily?	Practice Questions	View
1186	Which of the following is the rate law for SN1 mechanisms?	Practice Questions	View
1187	Which of the following factors has no effect on the rate of SN1 reactions?	Practice Questions	View
1188	Which is the most reactive alkyl halide in a SN1 reaction?	Practice Questions	View
1189	Which of the following halides is most reactive in an E2 reaction with sodium m…	Practice Questions	View
1190	Which of the following halides is least reactive in an E2 reaction with sodium …	Practice Questions	View
1191	Dehydrohalogenation of 2-bromobutane in the presence of a strong base proceeds …	Practice Questions	View
1192	Predict the two most likely mechanisms for the reaction of 2-iodohexane with so…	Practice Questions	View
1193	Predict the two most likely mechanisms which occur when 2-iodohexane is heated …	Practice Questions	View
1194	Grignard reagents do not show any reaction with	Practice Questions	View
1195	The Grignard reagent, CH3CH2MgBr, can be used to prepare	Practice Questions	View
1196	Which is the best reagent to accomplish the following conversion?	Practice Questions	View
1197	What is the major product of the following reaction?	Practice Questions	View
1198	Ethylmagnesium iodide reacts with formaldehyde to give a product which on acid-…	Practice Questions	View
1199	Ketones react with Grignard reagents to form an addition product which on hydro…	Practice Questions	View
1200	n-Propylmagnesium bromide on treatment with carbon dioxide and further hydrolys…	Practice Questions	View

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Questions (1999)