S1T5:
Which of the following is the most reactive alkaline earth metal?
Which of the following is the most reactive alkaline earth metal?
Final Results
40%
A. Ba
26%
B. Be
13%
C. Ca
20%
D. Sr
❤2
S1T5:
Which of the following Group 2 elements does not need to be kept under paraffin oil?
Which of the following Group 2 elements does not need to be kept under paraffin oil?
Final Results
9%
A. Sr
18%
B. Ca
57%
C. Be
16%
D. Ba
❤1
S1T4:
Which of the following is the product formed (other than water) when phosphorous acid reacts with excess aqueous sodium hydroxide?
Which of the following is the product formed (other than water) when phosphorous acid reacts with excess aqueous sodium hydroxide?
Final Results
18%
A. Na₃PO₃
47%
B. Na₃PO₄
20%
C. Na₂HPO₃
15%
D. NaH₂PO₃
S1T4:
What is the oxidation state of the Period 3 element in H₃PO₄?
What is the oxidation state of the Period 3 element in H₃PO₄?
Final Results
11%
A. 0
11%
B. -3
20%
C. +3
58%
D. +5
S3T16:
The alcohol X, with the formula C₆H₅C(CH₃)(OH)CH₂CH₃, is prepared using a Grignard reagent as shown below:
Haloalkane S → Grignard reagent → Alcohol X. Which of the following is not a possible haloalkane S?
The alcohol X, with the formula C₆H₅C(CH₃)(OH)CH₂CH₃, is prepared using a Grignard reagent as shown below:
Haloalkane S → Grignard reagent → Alcohol X. Which of the following is not a possible haloalkane S?
Final Results
27%
A. CH₃Cl
29%
B. C₆H₅Br
10%
C. CH₃CH₂Br
35%
D. C₆H₅CH₂Cl
S3T16:
Which of the following compounds is not suitable for preparing a Grignard reagent?
Which of the following compounds is not suitable for preparing a Grignard reagent?
Final Results
47%
A. Benzyl chloride
10%
B. Bromobenzene
21%
C. Chlorobenzene
22%
D. Iodobenzene
S1T3:
Which of the following molecules is not planar?
Which of the following molecules is not planar?
Final Results
41%
A. CO₂
14%
B. C₆H₆
29%
C. CH₂=CHCH₃
16%
D. CH₂=CHC≡CH
S3:
Which of the following is not a dehydrating agent?
Which of the following is not a dehydrating agent?
Final Results
10%
A. Al₂O₃
23%
B. SiO₂
47%
C. LiAlH₄
20%
D. Conc. H₂SO₄
S3:
Which of the following is not a reducing agent?
Which of the following is not a reducing agent?
Final Results
21%
A. H₂
12%
B. NaBH₄
18%
C. LiAlH₄
49%
D. CrO₂Cl₂
S1T6:
Which of the following tetrachlorides has the highest boiling point?
Which of the following tetrachlorides has the highest boiling point?
Final Results
23%
A. PbCl₄
37%
B. CCl₄
16%
C. SnCl₄
25%
D. SiCl₄
S1T6:
Which of the following best describes why carbon tetrachloride cannot be hydrolysed?
Which of the following best describes why carbon tetrachloride cannot be hydrolysed?
Final Results
2%
A. Carbon is a Period 2 element.
0%
B. CCl₄ has the smallest molecular size among the Group 14 tetrachlorides.
67%
C. CCl₄ has no empty d-orbitals to accept lone pairs of electrons from the oxygen atom in H₂O.
30%
D. The carbon atom has no d-orbitals to form dative bond with the oxygen atom in H₂O.
S1T6:
Which of the following statements is correct?
Which of the following statements is correct?
Final Results
9%
A. CO₂ is less stable than CO.
22%
B. PbCl₄ exists as a colourless liquid at room conditions.
37%
C. SiO is categorised as a neutral oxide, while SiO₂ is an amphoteric oxide.
32%
D. The boiling point of SiCl₄ is lower than that of CCl₄.
❤1
S1T6:
Which of the following statements is false?
Which of the following statements is false?
Final Results
21%
A. The band gap in germanium is smaller than that of silicon.
32%
B. Lead has a small band gap between the valence band and the conduction band.
29%
C. Diamond (carbon) has a very large band gap between the valence band and the conduction band.
18%
D. Graphite (carbon) has no significant band gap between the valence band and the conduction band.
S3T17:
What is the IUPAC name of the compound with the formula HO-C₆H₄-CH₂OH, where the -OH and -CH₂OH groups are located at opposite positions on the benzene ring?
What is the IUPAC name of the compound with the formula HO-C₆H₄-CH₂OH, where the -OH and -CH₂OH groups are located at opposite positions on the benzene ring?
Final Results
14%
A. 4-hydroxyphenylmethanol
20%
B. Hydroxlyphenylmethanol
52%
C. 4-(hydroxymethyl)phenol
14%
D. 4-(methylhydroxyl)phenol
S3T17:
What is the IUPAC name of CH₂=CHCH₂CH(OH)CH₃?
What is the IUPAC name of CH₂=CHCH₂CH(OH)CH₃?
Final Results
30%
A. 4-penten-2-ol
25%
B. Pent-4-ene-2-ol
33%
C. 4-hydroxy-1-pentene
12%
D. 4-hydroxypenta-1-ene
S3T16:
What is the IUPAC name of CH₃CH₂CHBrCH₂CH₂CH₂CH(CH₃)₂?
What is the IUPAC name of CH₃CH₂CHBrCH₂CH₂CH₂CH(CH₃)₂?
Final Results
41%
A. 3-bromo-7-methyloctane
27%
B. 6-bromo-2-methyloctane
5%
C. 3-bromo-2-methyloctane
27%
D. 5-bromo-1,1-dimethylheptane
❤1
S3T16:
What is the IUPAC name of CH2=CHCHBrCH3?
What is the IUPAC name of CH2=CHCHBrCH3?
Final Results
57%
A. 3-bromobut-1-ene
17%
B. 2-bromobut-3-ene
15%
C. 2-bromobut-1-ene
11%
D. 3-bromobuta-1-ene
S1T6:
MO is classified as a neutral oxide, while MO₂ is an acidic oxide with a giant covalent structure. Which of the following is M?
MO is classified as a neutral oxide, while MO₂ is an acidic oxide with a giant covalent structure. Which of the following is M?
Final Results
16%
A. C
71%
B. Si
7%
C. Ge
5%
D. Pb
S1T6:
Which of the following Group 14 elements forms both gaseous monoxide and dioxide?
Which of the following Group 14 elements forms both gaseous monoxide and dioxide?
Final Results
83%
A. C
6%
B. Si
6%
C. Ge
5%
D. Sn