Objective Questions

Questions (1999)

#	Question	Topic	Actions
1001	Kolbe's electrolysis of sodium butyrate gives	Practice Questions	View
1002	Which of the following classes of compounds is unreactive toward sulfuric acid?	Practice Questions	View
1003	Which of the following compounds does not dissolve in concentrated H2SO4 on war…	Practice Questions	View
1004	2,3-Dimethyl-2-butene undergoes catalytic hydrogenation to give	Practice Questions	View
1005	Why is the halogenation of alkanes considered a chain reaction?	Practice Questions	View
1006	The chlorination of methane to give CCl4 is an example of	Practice Questions	View
1007	In the chlorination of alkanes, the first step in which chlorine free radicals …	Practice Questions	View
1008	Chlorine free radicals react with methane by :	Practice Questions	View
1009	Which halogen does not appreciably react with methane in a free-radical substit…	Practice Questions	View
1010	What product is formed in the free-radical bromination of methane?	Practice Questions	View
1011	Chlorination of an alkane as compared to bromination proceeds	Practice Questions	View
1012	How many monochlorinated isomers would result from the reaction of chlorine wit…	Practice Questions	View
1013	How many monochlorination products are possible in the reaction of 2,2-dimethyl…	Practice Questions	View
1014	A compound of formula C3H8 does not react with bromine in CCl4 in the dark. The…	Practice Questions	View
1015	The combustion of Pentane produces :	Practice Questions	View
1016	The combustion of one mole of propane, C3H8, produces how many moles of H2O?	Practice Questions	View
1017	The major carbon compound formed from the incomplete combustion of a hydrocarbo…	Practice Questions	View
1018	The thermal decomposition of alkanes in the absence of air is called :	Practice Questions	View
1019	LPG (Household cooking gas) is mainly a mixture of	Practice Questions	View
1020	What type of bonding is most important in CH3CH2CH2CH2CH2CH3?	Practice Questions	View
1021	What is the name given to a compound containing only carbons and hydrogens and …	Practice Questions	View
1022	Which of the following is the best description of propane, CH3CH2CH3, at room t…	Practice Questions	View
1023	Choose the correct hybridization for the atom indicated in the molecule below.	Practice Questions	View
1024	Which of the following has the greatest solubility in CH3CH2CH2CH3?	Practice Questions	View
1025	Consider the three isomeric alkanes n-hexane, 2,3-dimethylbutane, and 2-methylp…	Practice Questions	View
1026	The eclipsed and staggered forms of ethane are said to differ in .	Practice Questions	View
1027	Octane number is related to	Practice Questions	View
1028	A knocking sound is produced in the engine when the fuel	Practice Questions	View
1029	The octane rating of gasoline provides information on	Practice Questions	View
1030	In any fuel, the percentage by volume of isooctane in a mixture of isooctane an…	Practice Questions	View
1031	Which of the following compounds is assigned the Octane Number of zero :	Practice Questions	View
1032	Which of the following compounds is assigned the Octane Number of 100 :	Practice Questions	View
1033	Gasoline with an octane number of 90 is equivalent in knocking characteristics …	Practice Questions	View
1034	A fuel with octane number 90 means it is as good as a mixture of :	Practice Questions	View
1035	Which hydrocarbon molecule with eight carbons would produce the lowest octane n…	Practice Questions	View
1036	Which of the following compounds is used as an antiknock compound?	Practice Questions	View
1037	Which of the following methods can be used to increase the octane rating of gas…	Practice Questions	View
1038	The carbon atoms involved in the double bond of an alkene are	Practice Questions	View
1039	Which of the following compounds is most stable?	Practice Questions	View
1040	In which solvent are alkenes most soluble?	Practice Questions	View
1041	Which statements about alkenes and alkanes of corresponding chain lengths is tr…	Practice Questions	View
1042	How do the melting points of trans isomers compare to the cis isomers for alken…	Practice Questions	View
1043	Why do trans isomers of alkenes have lower boiling points than cis isomers?	Practice Questions	View
1044	The major product of acid-catalyzed dehydration of 3-pentanol is :	Practice Questions	View
1045	Ethylene is obtained from ethyl bromide by :	Practice Questions	View
1046	The dehydrohalogenation of 2-bromobutane with alcoholic KOH gives mainly	Practice Questions	View
1047	In the reaction of propene with HCl, H+ ion acts as the :	Practice Questions	View
1048	In the reaction of ethylene with H2O in the presence of sulfuric acid, which on…	Practice Questions	View
1049	Why does a H+ ion attacking a carbon-carbon double bond add to the carbon with …	Practice Questions	View
1050	Propene reacts with bromine to form 1,2-dibromopropane. This is an example of	Practice Questions	View
1051	Baeyer's reagent is	Practice Questions	View
1052	In the addition of HX to a double bond, the hydrogen goes to the carbon that al…	Practice Questions	View
1053	Markovnikov's addition of HBr is not applicable to	Practice Questions	View
1054	In the reaction of CH3CH2CH=CH2 with HCl, the H of the HCl will become attached…	Practice Questions	View
1055	Which of the following compounds will react most readily with bromine in CCl4?	Practice Questions	View
1056	The disappearance of the purple color of KMnO4 in its reaction with alkene is k…	Practice Questions	View
1057	Which of the following will give a negative test when treated with bromine in c…	Practice Questions	View
1058	Ethylene reacts with HI to give	Practice Questions	View
1059	Which of the following reagents will react with propene?	Practice Questions	View
1060	Which of the following compounds will have zero dipole moment?	Practice Questions	View
1061	2-Methylpropene reacts with HBr to give	Practice Questions	View
1062	2-Butene reacts with HBr to give	Practice Questions	View
1063	Which of the following alkenes reacts with HBr in the presence of a peroxide to…	Practice Questions	View
1064	Propene reacts with HBr in the presence of a peroxide to give	Practice Questions	View
1065	2-Methylpropene reacts with HBr in the presence of peroxide to give	Practice Questions	View
1066	2-Methyl-2-butene reacts with HBr in the presence of peroxide to give	Practice Questions	View
1067	Hydration of 2-methyl-1-propene (with H2O/H2SO4) gives :	Practice Questions	View
1068	A compound reacts with steam in the presence of concentrated H2SO4 to give isop…	Practice Questions	View
1069	Propene reacts with Cl2 in H2O to give	Practice Questions	View
1070	1-Butene reacts with Cl2 in H2O to give	Practice Questions	View
1071	Catalytic hydrogenation of 3-methyl-1-butene gives :	Practice Questions	View
1072	Which of the following alkenes gives only acetic acid on oxidation with hot con…	Practice Questions	View
1073	Which of the following compounds will give only acetaldehyde on ozonolysis?	Practice Questions	View
1074	Which of the following alkenes will give a mixture of acetone and formaldehyde …	Practice Questions	View
1075	Which of the following alkenes will give a mixture of acetone and acetaldehyde …	Practice Questions	View
1076	A hydrocarbon, C6H12, on ozonolysis gives only one product which does not give …	Practice Questions	View
1077	Combustion of an alkene with sufficient oxygen will produce	Practice Questions	View
1078	Which of the following are correct statements concerning unsaturated hydrocarbo…	Practice Questions	View
1079	How many electrons are involved in a carbon-carbon double bond?	Practice Questions	View
1080	Which of the following statements about ethene, C2H4, is incorrect?	Practice Questions	View
1081	Which of the following statements about propene, CH3CH=CH2, is correct?	Practice Questions	View
1082	Which of the following is the most stable alkene?	Practice Questions	View
1083	Which of the alkyl chlorides listed below undergoes dehydrohalogenation in the …	Practice Questions	View
1084	What is the major product from the acid-catalyzed hydration of 2-methyl-2-pente…	Practice Questions	View
1085	1,2-Butadiene has	Practice Questions	View
1086	How many σ (sigma) bonds are there in CH2=CH—CH=CH2?	Practice Questions	View
1087	Propadiene, CH2=C=CH2, is	Practice Questions	View
1088	Which of the following molecular formulas will correspond to an alkene with two…	Practice Questions	View
1089	1,3-Butadiene reacts with bromine to mainly give	Practice Questions	View
1090	What descriptive term is applied to the type of diene represented by 1,5-octadi…	Practice Questions	View
1091	What descriptive term is applied to the type of diene represented by 2,4-hexadi…	Practice Questions	View
1092	Which of the following statements are correct concerning delocalized electrons?	Practice Questions	View
1093	What is the hybridization of the central carbon of allene (1,2-propadiene)?	Practice Questions	View
1094	What compound results from the 1,4-addition of one equivalent of HBr to 1,3-but…	Practice Questions	View
1095	Rank the following dienes in order of increasing stability : trans-1,3-pentadie…	Practice Questions	View
1096	A triple bond consists of	Practice Questions	View
1097	The bond angles associated with the hybrid orbitals of a carbon involved in a t…	Practice Questions	View
1098	How many electrons are involved in a carbon-carbon triple bond?	Practice Questions	View
1099	Which of the following improperly describes the physical properties of an alkyn…	Practice Questions	View
1100	Which of the following statements correctly describes the general reactivity of…	Practice Questions	View

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Questions (1999)