S1:
Which of the following statements is NOT true?
Which of the following statements is NOT true?
Final Results
22%
A. Among the hydrides of halogens, HF has the highest boiling point.
39%
B. Among the oxides of Period 3, SiO₂ has the highest melting point.
14%
C. Among the Period 3 elements, Ar has the lowest melting point.
24%
D. Among the first row transition elements, only Cu has higher electrical conductivity than Ca.
S3:
"The most substituted alkene is the major product of an elimination reaction."
Which rule is related to the above statement?
"The most substituted alkene is the major product of an elimination reaction."
Which rule is related to the above statement?
Final Results
2%
A. Hund's rule
62%
B. Saytzeff's rule
9%
C. Hofmann's rule
27%
D. Markovnikov's rule
S1:
"Electrons occupy degenerate orbitals singly with parallel spins before pairing up."
Which principle or rule is related to the above statement?
"Electrons occupy degenerate orbitals singly with parallel spins before pairing up."
Which principle or rule is related to the above statement?
Final Results
70%
A. Hund's rule
11%
B. Aufbau principle
19%
C. Pauli exclusion principle
0%
D. Heisenberg Uncertainty Principle
S3T16:
2-Phenylbutan-2-ol can be prepared by reacting a Grignard reagent with a carbonyl compound. Which of the following is not the carbonyl compound used?
2-Phenylbutan-2-ol can be prepared by reacting a Grignard reagent with a carbonyl compound. Which of the following is not the carbonyl compound used?
Final Results
13%
A. C₆H₅COCH₃
36%
B. CH₃COCH₂CH₃
15%
C. CH₃CH₂COC₆H₅
36%
D. C₆H₅CH₂COCH₃
S1T6:
X has a valence electronic configuration of 4s²4p².
Which of the following statements is NOT true about X?
X has a valence electronic configuration of 4s²4p².
Which of the following statements is NOT true about X?
Final Results
35%
A. The valence band and conduction band of X overlap.
31%
B. Both XO and XO₂ are amphoteric oxides.
15%
C. XCl₄ undergoes hydrolysis readily.
19%
D. XO is less stable than XO₂.
S3T18:
Which of the following reagents can be used to differentiate between benzaldehyde and phenylethanone?
Which of the following reagents can be used to differentiate between benzaldehyde and phenylethanone?
Final Results
15%
A. H₂N-NH-C₆H₅
31%
B. Cu²⁺, ⁻OH
13%
C. ZnCl₂, HCl
42%
D. I₂, ⁻OH
S1:
Which of the following is the same for Mg⁺ and Mg²⁺?
Which of the following is the same for Mg⁺ and Mg²⁺?
Final Results
58%
A. Nuclear charge
20%
B. Shielding effect
8%
C. Number of electrons
14%
D. Effective nuclear charge
❤1
S1:
X is a molecular element of Period 3. X reacts directly with oxygen. The oxides of X are soluble in water and produce a weak acid and a strong acid respectively. What is X?
X is a molecular element of Period 3. X reacts directly with oxygen. The oxides of X are soluble in water and produce a weak acid and a strong acid respectively. What is X?
Final Results
13%
A. Silicon
36%
B. Sulphur
35%
C. Chlorine
16%
D. Phosphorus
S3:
Isopropylmagnesium bromide reacts with ethanal to form an alcohol after acidic hydrolysis. Which of the following statements is correct?
Isopropylmagnesium bromide reacts with ethanal to form an alcohol after acidic hydrolysis. Which of the following statements is correct?
Final Results
19%
A. A primary alcohol is formed in the reaction.
31%
B. The intermediate is CH₃CH₂CH₂CH(OMgBr)CH₃.
38%
C. Both the alcohol formed and its oxidation product give a positive iodoform test.
12%
D. The alcohol formed undergoes esterification with CH₃COOH to produce 2-methylpropyl ethanoate.
S1:
Which of the following combinations has the largest difference in boiling point?
Which of the following combinations has the largest difference in boiling point?
Final Results
20%
A. CCl₄, SiCl₄
22%
B. SiCl₄, SnCl₄
50%
C. CCl₄, PbCl₄
9%
D. SiCl₄, GeCl₄
S3:
Which of the following reactions cannot lengthen the carbon chain?
Which of the following reactions cannot lengthen the carbon chain?
Final Results
18%
A. Reaction between a Grignard reagent and a carbonyl compound.
15%
B. Reaction between a carbonyl compound and hydrogen cyanide.
9%
C. Reaction between a haloalkane and ethanolic potassium cyanide.
59%
D. Reaction between an alcohol and acidified potassium manganate(VII).
S3:
Which of the following alkenes undergoes ozonolysis to form a single organic product?
Which of the following alkenes undergoes ozonolysis to form a single organic product?
Anonymous Quiz
22%
A. CH₂=CHCH₃
54%
B. CH₃CH=CHCH₃
13%
C. (CH₃)₂C=CHCH₃
10%
D. (CH₃)₂C=C(CH₃)CH₂CH₃
S3:
X is the simplest alkene that undergoes ozonolysis to form a single organic product. Which of the following are the carbon-containing products formed when X is heated with KMnO₄, H⁺?
X is the simplest alkene that undergoes ozonolysis to form a single organic product. Which of the following are the carbon-containing products formed when X is heated with KMnO₄, H⁺?
Anonymous Quiz
34%
A. CO₂
11%
B. HCHO
41%
C. CH₃COOH
14%
D. CH₃COCH₃
S3:
Which of the following reagents can be used to distinguish between methanoic acid and ethanoic acid?
Which of the following reagents can be used to distinguish between methanoic acid and ethanoic acid?
Anonymous Quiz
35%
A. Alkaline iodine
22%
B. Brady's reagent
13%
C. Lucas reagent
30%
D. Tollens' reagent
S1:
Y³⁺ is isoelectronic with scandium. Which of the following is the valence electronic configuration of Y³⁺?
Y³⁺ is isoelectronic with scandium. Which of the following is the valence electronic configuration of Y³⁺?
Anonymous Quiz
40%
A. 3d¹4s²
19%
B. 3s²3p⁶
19%
C. 3d⁵4s¹
22%
D. 3d³
S1:
Which of the following molecules has no hydrogen bonds?
Which of the following molecules has no hydrogen bonds?
Anonymous Quiz
16%
A. HF
11%
B. CH₃CH₂OH
58%
C. CH₃OCH₂CH₃
16%
D. CH₃CH₂NHCH₃
S1:
Which of the following shows the correct ascending order of the boiling points of the molecules?
Which of the following shows the correct ascending order of the boiling points of the molecules?
Anonymous Quiz
13%
A. HF, NH₃, H₂O
43%
B. NH₃, HF, H₂O
26%
C. NH₃, H₂O, HF
17%
D. H₂O, NH₃, HF
S1:
Which of the following is the correct name of the coordination compound with the formula Cu[CuCl₄]?
Which of the following is the correct name of the coordination compound with the formula Cu[CuCl₄]?
Anonymous Quiz
5%
A. Copper tetrachloridocopperate(II)
19%
B. Copper(II) tetrachlorocopper(II)
61%
C. Copper(II) tetrachlorocuprate(II)
14%
D. Copper(I) tetrachloridocuprate(II)
S1:
What is the name of [Mg(H₂O)₆]Cl₂?
What is the name of [Mg(H₂O)₆]Cl₂?
Anonymous Quiz
20%
A. Hexaaquamagnesium chloride
11%
B. Hexaaquamagnesium dichloride
48%
C. Hexaaquamagnesium(II) chloride
20%
D. Hexaaquamagnesium(II) dichloride