Year :
1995
Title :
Chemistry
Exam :
JAMB Exam
Paper 1 | Objectives
31 - 40 of 45 Questions
| # | Question | Ans |
|---|---|---|
| 32. |
Group 1 A metals are not found free in nature because they? A. are of low melting and boiling points B. have weak metallic bonding C. conduct electricity and heat D. are very reactive |
D |
| 33. |
CHCl3 + Cl2 → HCl + CCl4. The reaction above is an example of? A. an addition reaction B. a substitution reaction C. a chlorination reaction D. a condensation reaction |
B |
| 34. |
Which of the following pairs has compounds that are isomers? A. Propanal and propanone B. Ethanoic acid and ethylmethanoate C. Ethanoic acid and ethane-1, 2-diol D. 2-methylbutane and 2, 2-dimethylbutane Detailed SolutionPropanal and Propanone are functional isomers of each other with the functional group C=O |
|
| 35. |
Aromatic and aliphatic hydrocarbons can be distinguished from each other by the? A. action of bromine B. use of polymerization reaction C. action of heat D. use of oxidation reaction |
C |
| 36. |
The role of sodium chloride in the preparation of soap is to? A. purify the soap B. separate the soap from glycerol C. accelerate the decomposition of the fat or oil D. react with glycerol |
B |
| 37. |
CxHY + 4O2 → 3CO2 + 2H2O. The hydrocarbon, CxHY, in the reaction above is? A. propane B. propene C. propyne D. propanone |
C |
| 38. |
An example of a secondary amine is? A. propylene B. di-butylamine C. methylamine D. trimethylamine |
B |
| 39. |
The relatively high boiling points of alkanols are due to? A. ionic bonding B. aromatic character C. covalent bonding D. hydrogen bonding |
D |
| 40. |
 USE THE SECTION OF THE PERIODIC TABLE ABOVE TO ANSWER THIS QUESTION. Which of the indicate an alkali metal and a noble gas respectively? A. M and E B. G and E C. R and L D. G and L |
D |
| 41. |
 USE THE SECTION OF THE PERIODIC TABLE ABOVE TO ANSWER THIS QUESTION. Which letter represents a non-metal that is a solid at room temperature? A. T B. R C. J D. X |
A |
| 32. |
Group 1 A metals are not found free in nature because they? A. are of low melting and boiling points B. have weak metallic bonding C. conduct electricity and heat D. are very reactive |
D |
| 33. |
CHCl3 + Cl2 → HCl + CCl4. The reaction above is an example of? A. an addition reaction B. a substitution reaction C. a chlorination reaction D. a condensation reaction |
B |
| 34. |
Which of the following pairs has compounds that are isomers? A. Propanal and propanone B. Ethanoic acid and ethylmethanoate C. Ethanoic acid and ethane-1, 2-diol D. 2-methylbutane and 2, 2-dimethylbutane Detailed SolutionPropanal and Propanone are functional isomers of each other with the functional group C=O |
|
| 35. |
Aromatic and aliphatic hydrocarbons can be distinguished from each other by the? A. action of bromine B. use of polymerization reaction C. action of heat D. use of oxidation reaction |
C |
| 36. |
The role of sodium chloride in the preparation of soap is to? A. purify the soap B. separate the soap from glycerol C. accelerate the decomposition of the fat or oil D. react with glycerol |
B |
| 37. |
CxHY + 4O2 → 3CO2 + 2H2O. The hydrocarbon, CxHY, in the reaction above is? A. propane B. propene C. propyne D. propanone |
C |
| 38. |
An example of a secondary amine is? A. propylene B. di-butylamine C. methylamine D. trimethylamine |
B |
| 39. |
The relatively high boiling points of alkanols are due to? A. ionic bonding B. aromatic character C. covalent bonding D. hydrogen bonding |
D |
| 40. |
USE THE SECTION OF THE PERIODIC TABLE ABOVE TO ANSWER THIS QUESTION. Which of the indicate an alkali metal and a noble gas respectively? A. M and E B. G and E C. R and L D. G and L |
D |
| 41. |
USE THE SECTION OF THE PERIODIC TABLE ABOVE TO ANSWER THIS QUESTION. Which letter represents a non-metal that is a solid at room temperature? A. T B. R C. J D. X |
A |