Zadanie 24
Which compounds belong to the same homologous series? A. CH3CH2COOH, CH3COOH, CH3CH2CH2COOH B. CH3COCH3, CH3CH2CHO, CH3CH2COCH3 C. CH3CH2OH, CH3CHO, CH3COOH D. CH3CH2Cl, CH2=CHCl,…
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Which compounds belong to the same homologous series? A. CH3CH2COOH, CH3COOH, CH3CH2CH2COOH B. CH3COCH3, CH3CH2CHO, CH3CH2COCH3 C. CH3CH2OH, CH3CHO, CH3COOH D. CH3CH2Cl, CH2=CHCl,…
What is the name of this compound? BrCH2CH2CH(CH3)CH2CH3 A. 1-bromo-3-ethylbutane B. 5-bromo-3-methylpentane C. 1-bromo-3-methylpentane D. 1-bromo-2-ethylbutane
What is the major product formed when bromine, Br2, reacts with but-1-ene in an inert solvent? A. 2,2-dibromobutane B. 2-bromobutane C. 1,2-dibromobutane D. 1-bromobutane
What is the organic product when butan-2-ol, CH3CH(OH)CH2CH3, is heated under reflux with an excess of an acidified oxidizing agent? A. CH3CH2CH2COOH B. CH3COCH2CH3 C. CH3CH2CH2CHO D. CH3CH(OH)CH2CH3
Which of the statements are correct for propan-1-ol and butan-1-ol, which belong to the same homologous series? I. They differ by one CH2 unit. II. They have the same empirical formula. III. They have the same general formula, CnH2n+1OH. A. I…
Which products may be formed during incomplete combustion of hexane, C6H14? A. CO2, CO and H2 B. CO, H2 and H2O C. C, CO and H2O D. C and H2
Which of the following pairs are structural isomers? I. CH3CH2CH2OH and CH3CH(OH)CH3 II. CH3CH2CHO and CH3COCH3 III. CH3CH2CH2CH3 and CH3CH=CHCH3 A. I and II only B. I and III only C. II and III only D. I, II and III
Four 25.0 cm3 samples of water were measured using a graduated cylinder and each was weighed. The masses were 24.4 g, 25.6 g, 24.8 g and 25.2 g. The density of water under the conditions of the…
A 25.0 cm3 sample of ethanol weighed 19.725 g at 20 °C. What is the density of ethanol in g cm−3? A. 0.79 B. 0.789 C. 0.7890 D. 0.78900
Which graph shows the correct relationship between the pressure and the temperature in °C of a fixed amount of an ideal gas at constant volume? A. Graph A B. Graph B C. Graph C D. Graph D