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?
Final Results
25%
A. CH₂=CHCH₃
53%
B. CH₃CH=CHCH₃
13%
C. (CH₃)₂C=CHCH₃
9%
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⁺?
Final Results
33%
A. CO₂
11%
B. HCHO
43%
C. CH₃COOH
12%
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?
Final Results
34%
A. Alkaline iodine
23%
B. Brady's reagent
11%
C. Lucas reagent
32%
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⁺?
Final Results
39%
A. 3d¹4s²
17%
B. 3s²3p⁶
19%
C. 3d⁵4s¹
25%
D. 3d³
S1:
Which of the following molecules has no hydrogen bonds?
Which of the following molecules has no hydrogen bonds?
Final Results
15%
A. HF
12%
B. CH₃CH₂OH
57%
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?
Final Results
14%
A. HF, NH₃, H₂O
43%
B. NH₃, HF, H₂O
29%
C. NH₃, H₂O, HF
14%
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]?
Final Results
16%
A. Copper tetrachloridocopperate(II)
16%
B. Copper(II) tetrachlorocopper(II)
55%
C. Copper(II) tetrachlorocuprate(II)
12%
D. Copper(I) tetrachloridocuprate(II)
S1:
What is the name of [Mg(H₂O)₆]Cl₂?
What is the name of [Mg(H₂O)₆]Cl₂?
Final Results
17%
A. Hexaaquamagnesium chloride
16%
B. Hexaaquamagnesium dichloride
44%
C. Hexaaquamagnesium(II) chloride
22%
D. Hexaaquamagnesium(II) dichloride
S1:
Which of the following statements is true about chlorine?
Which of the following statements is true about chlorine?
Final Results
2%
A. It burns in O₂ to form Cl₂O₇.
69%
B. It reacts with H₂O to produce HCl and HOCl.
15%
C. It reacts slowly with H₂ in the presence of ultraviolet light.
15%
D. It reacts with concentrated NaOH to form NaCl, NaClO, and H₂O.
S3:
Which of the following reactions can convert an ester into products that can react under suitable conditions to form an ester again?
Which of the following reactions can convert an ester into products that can react under suitable conditions to form an ester again?
Final Results
13%
A. Oxidation
32%
B. Reduction
41%
C. Acidic hydrolysis
14%
D. Alkaline hydrolysis
S1:
Which of the following is not relevant to the difference in the physical state of CO₂ and SiO₂?
Which of the following is not relevant to the difference in the physical state of CO₂ and SiO₂?
Anonymous Quiz
21%
A. CO₂ is a simple covalent molecule, while SiO₂ has a giant covalent structure.
13%
B. Weak intermolecular van der Waals forces between CO₂, strong covalent bonds between Si-O atoms.
45%
C. The relative molecular mass of CO₂ is lower than that of SiO₂.
21%
D. CO₂ is a gas, while SiO₂ is a solid.
❤1
S1:
Which of the following elements is unable to catenate?
Which of the following elements is unable to catenate?
Anonymous Quiz
19%
A. C
24%
B. S
18%
C. Si
39%
D. Pb
❤1
S3:
L is a saturated hydrocarbon with the formula C₄H₈. L reacts with Br₂ in ultraviolet light to form various monobrominated organic products. What is L?
L is a saturated hydrocarbon with the formula C₄H₈. L reacts with Br₂ in ultraviolet light to form various monobrominated organic products. What is L?
Anonymous Quiz
29%
A. But-1-ene
31%
B. Cyclobutane
5%
C. Cyclobutene
35%
D. Methylcyclopropane
S3:
What is the class of the amine with the formula (CH₃)₂CHNH₂?
What is the class of the amine with the formula (CH₃)₂CHNH₂?
Anonymous Quiz
47%
A. Primary
38%
B. Secondary
11%
C. Tertiary
5%
D. Quaternary
S3:
What is the name of the compound C₅H₉CH₂CH₂CH₂NHCH₃?
What is the name of the compound C₅H₉CH₂CH₂CH₂NHCH₃?
S1:
Compare the bond angle of H₂O with that of H₂S.
Compare the bond angle of H₂O with that of H₂S.