S1T4:
Which of the following elements exhibits the highest oxidation state in its compounds?
Which of the following elements exhibits the highest oxidation state in its compounds?
Final Results
31%
A. Al
18%
B. Si
19%
C. S
32%
D. Cl
S1T5:
Which of the following is NOT a Group 2 element?
Which of the following is NOT a Group 2 element?
Final Results
11%
A. Ba
7%
B. Be
7%
C. Ca
75%
D. Sc
S3T15:
Which of the following statements is true regarding CH₃CH=C(CH₂CH₃)CH₂CH₂CH₃?
Which of the following statements is true regarding CH₃CH=C(CH₂CH₃)CH₂CH₂CH₃?
Final Results
19%
A. It is called 3-ethylhexene.
21%
B. It does not show geometrical isomerism.
36%
C. It reacts with bromine water to form 2-bromo-3-ethylhexan-3-ol.
24%
D. Oxidation with KMnO₄, H⁺ gives an aldehyde and ketone as final products.
❤2
S1T4:
X is a Period 3 element. There is a small energy gap between its valence band and conduction band. What is X?
X is a Period 3 element. There is a small energy gap between its valence band and conduction band. What is X?
Final Results
7%
A. Boron
70%
B. Silicon
20%
C. Aluminium
4%
D. Phosphorus
S1T5:
Which of the following is true about Group 2?
Which of the following is true about Group 2?
Final Results
33%
A. They form basic oxides.
25%
B. They are called alkaline metals.
5%
C. All Group 2 elements must be kept under paraffin oil.
38%
D. The reducing power increases going down the group.
😢1
S1T4:
Y is a Period 3 element with the highest electrical conductivity. Which of the following statements about Y is not true?
Y is a Period 3 element with the highest electrical conductivity. Which of the following statements about Y is not true?
Final Results
10%
A. Y burns vigorously in oxygen at high temperatures to form an insoluble oxide.
15%
B. The valence band and conduction band of element Y overlap.
35%
C. The oxide of Y can react with both acids and alkalis.
40%
D. Y is an s-block element.
S3T15/21:
Part of the polymer of an alkene is shown below:
-CH(CH₃)C(CH₃)₂-CH(CH₃)C(CH₃)₂- Which of the following statements is not true?
Part of the polymer of an alkene is shown below:
-CH(CH₃)C(CH₃)₂-CH(CH₃)C(CH₃)₂- Which of the following statements is not true?
Final Results
17%
A. The polymer is an addition polymer.
32%
B. The alkene does not exhibit cis-trans isomerism.
34%
C. Ozonolysis of the alkene produces ethanol and propanone.
17%
D. The alkene reacts with O₂, Ag, followed by acidic hydrolysis to form 2-methylbutane-2,3-diol.
S3T15:
A 3-step synthetic pathway to 2-nitrobenzoic acid is shown below:
Benzene ---> P ---> Q ---> 2-nitrobenzoic acid Which of the following is correct?
A 3-step synthetic pathway to 2-nitrobenzoic acid is shown below:
Benzene ---> P ---> Q ---> 2-nitrobenzoic acid Which of the following is correct?
Final Results
17%
A. Q is benzoic acid.
28%
B. Step 1 is nitration.
49%
C. Step 3 requires KMnO₄, H⁺.
6%
D. None of the options A to C is correct.
S3T15:
Methylbenzene undergoes Friedel-Crafts alkylation with chloroethane in the presence of a Lewis acid catalyst to form X and Y. Which of the following is the IUPAC name of X? Suggest the IUPAC name of Y.
Methylbenzene undergoes Friedel-Crafts alkylation with chloroethane in the presence of a Lewis acid catalyst to form X and Y. Which of the following is the IUPAC name of X? Suggest the IUPAC name of Y.
Final Results
18%
A. 2-ethyltoluene
20%
B. 1,2-dimethylbenzene
34%
C. 2-ethylmethylbenzene
27%
D. 1-ethyl-2-methylbenzene
S1T4:
Oxide of Z is soluble in water and forms the second strongest acid among the acids formed by oxides of Period 3. Which of the following is Z?
Oxide of Z is soluble in water and forms the second strongest acid among the acids formed by oxides of Period 3. Which of the following is Z?
Final Results
4%
A. Silicon
50%
B. Sulphur
30%
C. Chlorine
16%
D. Phosphorus
❤2
S3T15:
Which of the following is the IUPAC name for this compound?
👍 2-ethyl-1-methylcyclohexene
❤️ 1-ethyl-2-methylbenzene
🎉 6-ethyl-1-methylcyclohexene
👏 3-ethyl-2-methylcyclohexene
👨🔬👩🔬🧑🔬
The answer is 🎉 !!!
If you answered incorrectly, please refer to international chemistry textbooks listed by MPM as the main references. E.g.: Wade and Graham Solomon.
Which of the following is the IUPAC name for this compound?
👍 2-ethyl-1-methylcyclohexene
❤️ 1-ethyl-2-methylbenzene
🎉 6-ethyl-1-methylcyclohexene
👏 3-ethyl-2-methylcyclohexene
👨🔬👩🔬🧑🔬
The answer is 🎉 !!!
If you answered incorrectly, please refer to international chemistry textbooks listed by MPM as the main references. E.g.: Wade and Graham Solomon.
👏37🎉11👍3
S1T3:
Which of the following best describes the inertness of nitrogen?
Which of the following best describes the inertness of nitrogen?
Final Results
63%
A. Triple covalent bond
16%
B. Non-polar molecule
11%
C. High bond enthalpy
10%
D. Octet configuration
S3T15:
Which of the following is the systematic name for CH₂=C(CH₃)CH=CH₂?
Which of the following is the systematic name for CH₂=C(CH₃)CH=CH₂?
Final Results
10%
A. Isoprene
46%
B. 2-methylbut-1,3-diene
9%
C. 2-methylbut-di-1,3-ene
35%
D. 2-methylbuta-1,3-diene
😱3
S3T15:
Which of the following sets correctly show the class of organic compounds and their primary type of reaction?
Which of the following sets correctly show the class of organic compounds and their primary type of reaction?
Final Results
20%
A. Alkane - free radical addition
13%
B. Alkene - electrophilic substitution
15%
C. Haloalkane - nucleophilic addition
52%
D. Arene - electrophilic aromatic substitution
S1T5:
Q is an alkaline earth metal. Its oxide is insoluble in water. What is Q?
Q is an alkaline earth metal. Its oxide is insoluble in water. What is Q?
Final Results
56%
A. Be
18%
B. Mg
10%
C. Ca
16%
D. Ba
S1T4:
R is a Period 3 element that does not react directly with oxygen. Its oxides react with water to form acidic solutions. What is R?
R is a Period 3 element that does not react directly with oxygen. Its oxides react with water to form acidic solutions. What is R?
Final Results
6%
A. Argon
15%
B. Sulphur
70%
C. Chlorine
10%
D. Phosphorus
S3T15:
Which of the following compounds is formed when C₆H₆ reacts with CH₂=CHCH₃ in the presence of AlCl₃ and H⁺?
Which of the following compounds is formed when C₆H₆ reacts with CH₂=CHCH₃ in the presence of AlCl₃ and H⁺?
Final Results
48%
A. C₆H₅CH₂CH₂CH₃
34%
B. C₆H₅CH(CH₃)₂
14%
C. C₆H₅CH₂CH₃
4%
D. C₆H₅CH₃
S3T15:
Benzene can be converted to phenol through the cumene process via the following steps:
Benzene ----> Cumene ----> Cumene hydroperoxide ----> Phenol What is the class of the side organic product formed at the end of this reaction?
Benzene can be converted to phenol through the cumene process via the following steps:
Benzene ----> Cumene ----> Cumene hydroperoxide ----> Phenol What is the class of the side organic product formed at the end of this reaction?
Final Results
17%
A. Acetone
23%
B. Aldehyde
43%
C. Ketone
17%
D. Water