Chemistry Organic pt 4

101. Polymerization is cbaracteristic for: ethene. methylbenzene. methane. heptene.

102. Tertiary alcohol is: 2-methyl-2-propanol. 3-hexanol. 2-methyl- l -propanol. 2-propanol.

103. Which of the following compounds is the strongest acid: phenol. 4-nitrophenol. 2,4,6-trinitrophenol. ethanol.

104. The phenol is: stronger acid than carbonic acid. weaker acid than carbonic acid. not an acid because thcre are not carboxylic group in its structure. an alcohol.

105. The given formula represents the structure of: acetylsalicylic acid. acetylbenzoic acid. 2-methoxybenzoic acid. all answers are wrong.

106. The given formula represents the structure of: HC=-C-CH3. propane. propene. propyne. propanal.

107. What type of isomerism is possible with salicylic acid?. only chain. only positional. only geometrical. all listed types.

108. In the molecule of the n-butane the C-H bonds are formed by overlap of the s-orbital of H with: sp-orbitals of C. sp2 -orbitals of C. sp3 -orbitals of C. p-orbitals of C.

109. How many carbon atoms in the molecule of acrylonitrile are in sp-hybrid state?. one. two. all. none.

110. The maltose is: a disaccharide consisting of glucose and fructose residues, an intennediate in the hydrolysis of cellulose;. a disaccharide consisting of glucose residues, an interrnediate in the hydrolysis of starch. a disaccharide consisting of fructose residues, an intermediate in the hydrolysis of amylose;. a disaccharide consisting only of glucose residues.

111. Which of the claims for benzene and cyclohexane is NOT true? (a) They contain the same number of atoms; (b) They can be obtaioed from each other by hydrogenation and dehydrogenation. (e) Their carbon atoms are in the same hybrid state. only (a). only (b). only (c). none.

112. The compounds with chemical formulas CH3-O-CH3 and CH3CH2OH are: chain isomers. metamers. geometrical isomers. they are not isomers.

113. Which of the listed compounds decolorizes a sulphuric. acid solution of potassium permanganate?. cyclohexane. styrene. benzene. 2-methylpropane.

114. Which of the listed compounds does NOT interact with phenol?. carbon oxide. fonnaldehyde. iron trichloride. nitric acid.

115. Which of the listed compounds can NOT be hydrolyzed?. saccharose. starch. ethyn. etbylacetate.

116. The following reaction scheme is given: 1,2-dibromoethane - X - bromoethane - Y - ethyl acetate Determine from the lists compounds X and Y. ethanol and ethanal. ethanal af!d ethene. ethene and ethanol. ethyn and ethanal.

117. Which of the Jisted compounds can OT be formed by cracking of octane?. butane. 1-butene. butanal. propene.

118. Which of the listed substances when interacting with methylamine gives a salt?. bromomethane. oxygen. bydrogen bromide. water.

119. The following reaction scheme is given: sodium and 1-hexyne. sodium chloride and 3-hexyne. sodium hydroxide and 1-hexyne. sodium and 3-hexyn.

120. Which of the listed compounds interacts with bromine water?. ethyn. benzene. toluene. propane.

121. Which of the listed substances are forrned at dehydrocyclisation of hexane?. toluene and bydrogen. hydrogen and benzene. 1,2-dimethylbenzene and bydrogen. benzene and 1,2-dimethylbenzene.

122. The following reaction scherne is given: CHLOROMETHANE -> X -> POTASSIUM METHOXIDE CH3CH2Cl Y -> Deterrnine which are compounds X and Y?. ethane and diethyl ether. methanol and methylethyl ether. methylbenzene and ethene. methylethyl ether and diethyl ether.

123. The conversion of the butane into butene is carried out by reaction of: polymerization. dehydrogenation. dehydration. isomerization.

124. Upon hydrogenation of alkenes are formed: al kanes. alkynes. alkadienes. alcohols.

125. Butane unJike 2-buten: interacts with oxygen. does not undergo reaction of hydrogenation. does not internet with chiarine. has a structural isomer.

126. The reaction of 1-butene and chlorine gives: 2-chloro-1-buten. 1,2-dichlorobutane. 1,2-dichloro- l-buten. 1, 1-dichlorobutane.

127. The hydration of 3-methyl-2-penten gives rnainly: 3-methyl-3-pentanol. 3-methyl-2-pentanol. 3-methyl-2,3-pentandiol. 3-methyl-1-pentanol.

128.The alkenes may be distinguished from the alkanes with the help of: brominc water. copper helix. etbauol. litmus.

129. Characteristic reactions for alkenes are: substitution. addition. elimination. exchange.

130. Which of the listed substances do NOT interact with ethylene: H2O;. H2;. Cl2. CH4.

131. Polypropylene is obtained from a substance with formula: CH2=CH2 ;. CH3-CH2-CH3;. CH 2=CH-CH3 ;. CH2 =C=CH2.

132. Upon nitration of glycerin is formed a substance related to the class of: ethers. salts. aldehydes. esters.

133. As a result in the rcaction of polycondenzation is formed: polyvinylchloride. phenol fonnaldehyde resin. natural rubber. polyetbylene.

134. 2-methyl-2-butene is formed through intramolecular dehydration of: A. B. C. D.

135. Ethanol does NOT interact with: NaOH. Na. HCI. O2.

136. Upon reaction of toluene with an excess of concentrated nitric acid is formed: 3,5 - dinitrotoluene. 3,4,5 - trinitrotoluene. 3,4 - dinitrotoluene. 2,4,6, - trinitrotoluene.

137. Ethyl alcohol is formed by addition of hydrogen to: ethane. ethanal. ethyne. methanal.

138. Point the reaction of dehydration: A. B. C. D.

139. Sodium hydroxide forms salts when interacting whit: phenol. ethanol. ethanal. aniline.

140. Upon interaction of phenol with bromine is formed a mixture of: 2- and 3- bromophenols. 3- and 4- bromophenols. 2- and 4- bromophenols. 2,3- and 3,4- dibromophenols.

141. By the help of which reagent I-propanol and 1,2,3-propantriol may be distinguished?. potassium hydroxide. metal sodium. copper (II) hydroxide. bromine water.

142. The general formula for noncyclic alkenes is: CnH2n+2. CnH2n. CnH2n-2. CnHn+2.

143. The correct name for the compound given below is: H3C-C=CH2 I CH2-CH3. 2-methyl-1-butene. 2-ethyl- 1 -propene. 2-ethyl- 1 -pentane. 3-methyl-2-butene.

144. Which one of the following is a secondary alcohol?. CH3CH2OH. CH3OH. CH3CH(OH)CH3. (CH3 )3COH.

145. Which of the following hydrocarbons has three isomers?. C6H14. C5H10. C4H8. C3H8.

146. Which of the following alcohols forms an aldehyde when oxidized?. 2-butanol. methanol. 2-methyl-2-propanol. 2-propanol.

147. Ethanol can be oxidized stepwise. What is the first stable intermediate product when ethanol is oxidized with a mild oxidation agent?. Cl-13COOH. CO2. CH3CHO. CH3CH2OH.

148. Which of the following represents the structure of a triacylglyceride?. A. B. C. D.

149. Which of the following amino acids is achiral?. alanine. glycine. serine. cysteine.

150. In the Haber's process for the manufacturing of ammonia, nitrogen is taken from: proteins occurring in living bodies. ammonium salts obtained industrially. air. mineral containing nitrates.

151. Consider the following reaction: R-CHO + 2[Ag(NH3)2 ]OH R-COONH4 + 2Ag + 2NH3 + H2O This reaction represents one of the following tests. Fehling test. Benedict test. ninhydrin test. Tollens test.

152. Which one of the following is an alpha amino acid?. A. B. C. D.

153. The CFCs (fluorochlorocarbohydrates) are the main reason for: acid rains. pollution of the soil. destruction of the ozone layer. pollution of the water.

154. Which pair of structures represents a pair of isomers?. A. B. C. D.

155. The compound: alkane. alkene. alkine. aromatjc carbohydrate.

156. Which one of the following will give 1-butene as the only alkene by heating with KOH in ethanol?. 1-Bromobutane. 1-butanol;. 1-Butanamine. 2-butanol.

157. The other name of picric acid is: 2-hydroxybenzoic acid. 2,4,6-trinitrophenol. benzencarboxillic acid. 2,4,6-trinitrobenzoic acid.

158. 1-Pentine and 2-pentine rnay be distinguished by interaction with: bromine water. hydrogenbromide. sodium. water.

159. By which of the presented processes and interactions can be distinguished formic acid from ethanoic acid?. cuprum dihydroxide. active metal. alkali oxide. alkali hydroxide.

160. For the carboxylic acids is OT typical the reaction of: hydration in the presence of mercury ions in sulfw-ic acid media. esterification. dehydratation. decarboxilation.

161. Which of the listed compounds contains an aldehyde group?. glycine;. methanol;. propanone;. glucose.

162. Witb which of the cornpounds: ethanol, sodium· bydroxide and acetic anhydride, salicylic acid is interacting?. only sodiurn hydroxide and ethanol. only ethanol and acetic anhydride. only sodium hydroxide. sodium hydroxide, ethanol and acetic anbydride.

163. . Which of compounds (A), (B), (C) and (D) are isomers?. (A) and (B). (C) and (D). (A) and (D). (B) and (C).

164. Which of the following hydrocarbons would be expected to have the highest boiling point?. C4H10. C5H12. C3H8. CH4.

165. Which one of the following will give 1-butene as the only alkene by heating with concentrated sulfuric acid?. 1-butanol. 1-Bromobutane;. 1-Butan amine. 2-butanol.

166. Which compound is INCORRECTL Y match ed to the functional group that it contains?. CH3OH hydroxyl. CH3COOH hydroxyl. CH3CH2NH2 amine. CCl3COOH carboxylic acid.

167. The other name of salicylic acid is: 2-rnethylbenzoic acid. 2-hydroxybenzoic acid. benzencarboxillic acid. 4-nitrobenzoic acid.

168. Glucose and fructose may be distinguished by interaction with: sodium. Cu(OH)2. bromine water. water.

169. By which of the presented processes and interactions can be distinguished phenol from benzoic acid?. ferric trichloride. active metal. alkaline oxide. alkaline hydroxide.

170. Which of the listed compounds contains keto group?. glycine;. methanol;. glucose;. propanone.

171. Which hydrocarbon will undergo a substitution reaction with a halogen?. pentyne. butene;. butane;. ethene.

172. When methane, CH4, burns in excess oxygen, the products would be. CO2 + 2H2;. CH3OH. CO+ H2O;. CO2 + H2O.

173. A carbonyl group is present in ali of these functional groups except: ketones;. esters;. ethers;. amides.

174. What is the product of the reaction of benzene with a solution of nitric acid in sulfuric acid at 50 °C?. A. B. C. D.

175. Tollens' reagent, basic diammine silver (I) solution, gives a positive test (in the form of a silver mirror) in the presence of aldehy.des. Which sugars give a positive Tollens' test? I. Sucrose II. Lactose. I only. II only. Both I and II. Neitber I nor II.

176. Which of the following is not classified as a carbohydrate?. glucose. glycine. lactose. starch.

177. What is the major product of the following reaction?. A. B. C. D.

178. Two isomerie forms of a saturated hydrocarbon. have the same structure. have different compositions of elernents. have the same molecular formula. have a different content of the isotopes ofhydrogen.

179. The reaction below is best classified as. addition. esterification. neutralization. saponification.

180. Which compound will react rapidly with Br2 ?. benzene. hexane. 1-hexene. 1-hexanol.

181. What is the IUPAC name for the compound CH3CH2CH2CH2CHO?. pentanal. pentanoic acid. 1-pentanol. 1-pentanone.

182. What is the major product of the following reaction?. A. B. C. D.

183. Which of the following hydrocarbons does NOT bave isomers?. C6H14. C5H10. C4H8. C3H8.

184. What is the expected product formed from the reaction between 2-butene and Cl2?. 2-chlorobutane. 3,3-dichlorobutane. 2,3-dichlorobutane. 2,2-dichlorobutane.

185. Which of the following alcohols forms a ketone when oxidized?. 1-propanol. 2-methyl-2-propanol. 2-propanol. all of the above.

186. Aspirin has the structural formula below. Which functional groups does this molecule contain? I. acid II. alcohol III. ester IV. ether. I and III. II and III. II and IV. I, II, III and IV.

187. Which is NOT a physical property of alcohols or phenols?. Phenols are generally only slightly soluble in water. The solubilities of nonnal primary alcohols in water decrease with increasing molecular weight. The hydroxyl group of an alcohol is nonpolar. Due to hydrogen bonding, boiling points of alcohols are much higher than those of corresponding alkanes.

188. What is the major product expected from the following reaction?. A. B. C. D.

189. Methanol can be gently oxidized with hot copper metal. What is (are) the product(s) of this oxidation?. acetic acid. carbon dioxide and water. ethanol. methanal.

190. What is the best name for the following compound? CH2 Il CH 3-CH2-C-CH2-CH2-CH3. 3-methylenehexane. 2-propyl-1-butene. 4-ethyl-4-pentene. 2-ethyl-1-pentene.

191. What kind of hybrid orbitals are utilized by the carbon atom in CF4 molecules?. sp. sp2. sp3. sp3 d2.

192. How many cr and 7t bonds are there in the ethyne molecule? H-C =- C-H. 3 cr and 2 p. 3 cr and 4 p. 2 cr and 3 p. 4 cr and 3 p.

193. The benzene ring of benzaldehyde substitutes at rn-position to the aldehyde group, because it has: +M and +I effect. -M and +I effect. -M and -1 effect. +M and -I effect.

194. Carbonyl derivatives DO OT add one of the following substances: hydrogen. hydrogen cyanide. bromine. ethanol.

195. Phenol is found with: solution of Ag2O in ammonia. FeCI3 solution. freshly precipitateci Cu(OH)2. none of the above.

196. The product of dehydration of a primary alcohol is an: aldehyde. alkene. ketone. alkane.

197. Under hydrolitic conditions sucrose yields: glucose only. glucose and fructose. fructose only. glucose and lactose.