Objective Questions

Questions (2006)

#	Question	Topic	Actions
101	1-Buten-3-yne has	Practice Questions	View
102	Which of the following is not a characteristic of organic compounds?	Practice Questions	View
103	The element least likely to be found in an organic compound is	Practice Questions	View
104	One of the major sources of organic compounds is	Practice Questions	View
105	Catenation is a property of the carbon atom which describes its ability to	Practice Questions	View
106	In stable organic compounds, carbon will always form	Practice Questions	View
107	Carbon-carbon double bonds consist of :	Practice Questions	View
108	Acetylene has a total of :	Practice Questions	View
109	In propene there are	Practice Questions	View
110	In propyne there are	Practice Questions	View
111	Compound in which carbons use only sp3 hybrid orbitals for bond formation is	Practice Questions	View
112	When the carbon atom is sp2 hybridized in a compound, it is bonded to	Practice Questions	View
113	Which of the following is a planar molecule?	Practice Questions	View
114	What is bond angle between the hybrid orbitals in methane?	Practice Questions	View
115	The H–C–C bond angle in ethane is	Practice Questions	View
116	The H–C–H bond angle in ethylene is	Practice Questions	View
117	What is the bond length of a carbon-carbon double bond?	Practice Questions	View
118	The carbon-carbon bond lengths in rank of increasing bond length is :	Practice Questions	View
119	Which of the following is the correct order of bond lengths :	Practice Questions	View
120	What is the hybridization of the carbon atoms numbered 1 and 2 respectively in …	Practice Questions	View
121	How many atoms are attached to an atom having a sp hybridization?	Practice Questions	View
122	Which statement is true?	Practice Questions	View
123	Resonance structures of a molecule have	Practice Questions	View
124	Which of the following compounds have planar molecules?	Practice Questions	View
125	Which molecule has a nonzero dipole moment?	Practice Questions	View
126	Which of the following compounds have lowest dipole moment?	Practice Questions	View
127	Which molecule has the greatest dipole moment	Practice Questions	View
128	Which of the following compounds have highest dipole moment?	Practice Questions	View
129	Homolytic fission of C–C bond leads to the formation of :	Practice Questions	View
130	Homolytic fission of covalent bond between carbon atoms will produce :	Practice Questions	View
131	The order of stability of carbonium ions is	Practice Questions	View
132	The order of stability of carbanions is	Practice Questions	View
133	Which alkyl free radical is the most stable?	Practice Questions	View
134	Which of the following statements is correct regarding nucleophiles?	Practice Questions	View
135	Which of the following is a nucleophile?	Practice Questions	View
136	Which of the following is not a nucleophile?	Practice Questions	View
137	Which of the following is a Lewis acid?	Practice Questions	View
138	Which of the following ranges best represents the strength of a hydrogen bond?	Practice Questions	View
139	Which describes the bond strength or bond dissociation energy?	Practice Questions	View
140	Which statement is correct?	Practice Questions	View
141	Which of the following is incorrect?	Practice Questions	View
142	Which of the following is correct?	Practice Questions	View
143	What does a 'curved' arrow represent?	Practice Questions	View
144	What is the predicted shape, bond angle, and hybridization for CH3+?	Practice Questions	View
145	What is the name given for a species that contains a positively charged carbon …	Practice Questions	View
146	The lone-pair electrons of the methyl anion occupy a orbital.	Practice Questions	View
147	An increase in which of the following results in a decrease in the rate of the …	Practice Questions	View
148	The reaction step that has its transition state at the highest point on the rea…	Practice Questions	View
149	An electrophile acts as a when it reacts with a nucleophile.	Practice Questions	View
150	A nucleophile acts as a when it reacts with an electrophile.	Practice Questions	View
151	Which of the following is not normally considered to be a nucleophile?	Practice Questions	View
152	Which of the following is the strongest interaction?	Practice Questions	View
153	Which of the following statements is incorrect?	Practice Questions	View
154	Which of the following is a nonpolar molecule?	Practice Questions	View
155	Which is defined as a species that accepts a proton?	Practice Questions	View
156	Which statement is correct about acid-base chemistry?	Practice Questions	View
157	Which of the following statements is correct?	Practice Questions	View
158	What is the conjugate acid of CH3NH2?	Practice Questions	View
159	What is the conjugate base of CH3NH2?	Practice Questions	View
160	Which of the following are Lewis bases?	Practice Questions	View
161	Two compounds have the same composition and also have the same atoms attached t…	Practice Questions	View
162	The isomers of a substance must have	Practice Questions	View
163	Compounds with the same molecular formula but different structural formulas are…	Practice Questions	View
164	Ethanol (CH3CH2OH) and dimethyl ether (CH3OCH3) are best considered :	Practice Questions	View
165	The compounds CH3CH2OCH2CH3 and CH3OCH2CH2CH3 are	Practice Questions	View
166	Which of the following statements is false about tautomers?	Practice Questions	View
167	How many isomers are possible for the compound with molecular formula C4H8?	Practice Questions	View
168	How many structural isomers are possible for C4H9Br?	Practice Questions	View
169	How many isomeric aromatic hydrocarbons are possible for C8H10?	Practice Questions	View
170	Which compound is not an isomer of the other three?	Practice Questions	View
171	Alkenes show geometrical isomerism due to :	Practice Questions	View
172	Which of the following compounds exhibit geometrical isomerism?	Practice Questions	View
173	Which of the following compounds may exist as cis-trans isomers?	Practice Questions	View
174	Geometrical isomerism is shown by	Practice Questions	View
175	Which of the following compounds show geometrical isomerism?	Practice Questions	View
176	Which of the following compounds will show geometrical isomerism?	Practice Questions	View
177	A molecule is said to be chiral	Practice Questions	View
178	Which of the statements is false regarding chiral compounds?	Practice Questions	View
179	An optically active compound	Practice Questions	View
180	Plane-polarized light is affected by	Practice Questions	View
181	It is possible to distinguish between optical isomers	Practice Questions	View
182	Optical isomers that are mirror images are called :	Practice Questions	View
183	Optical isomers that are not mirror images are called	Practice Questions	View
184	Enantiomers have which of the following characteristics?	Practice Questions	View
185	Which of the following statements is false about enantiomers?	Practice Questions	View
186	A meso compound :	Practice Questions	View
187	What is the possible number of optical isomers for a compound containing n diss…	Practice Questions	View
188	What is the possible number of optical isomers for a compound containing 2 diss…	Practice Questions	View
189	meso-Tartaric acid is	Practice Questions	View
190	Which of the following compounds will be optically active?	Practice Questions	View
191	Which of the following isomeric compounds show optical isomerism :	Practice Questions	View
192	2-Butanol is optically active because it contains :	Practice Questions	View
193	Optical isomerism is shown by	Practice Questions	View
194	Lactic acid, is a molecule which shows	Practice Questions	View
195	How many optical isomers are possible for lactic acid?	Practice Questions	View
196	Which of the following represents a racemic mixture?	Practice Questions	View
197	Consider (R)- and (S)-2-butanol. Which physical property distinguishes the two …	Practice Questions	View
198	Which of the following is capable of exhibiting cis-trans isomerism?	Practice Questions	View
199	Which of the following is a true statement?	Practice Questions	View
200	Which of the statements below correctly describes an achiral molecule?	Practice Questions	View

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Questions (2006)