S3T18:
Which of the following reagents can be used to distinguish benzaldehyde and phenylethanal?
Which of the following reagents can be used to distinguish benzaldehyde and phenylethanal?
Final Results
36%
A. Tollens' reagent
37%
B. Fehling's solution
10%
C. Schiff's reagent
17%
D. Brady's reagent
S3:
Which of the following compounds are the monomers of nylon 6,10?
Which of the following compounds are the monomers of nylon 6,10?
Final Results
30%
A. Hexanedioic acid, Decane-1,10-diamine
36%
B. Decanedioic acid, Hexane-1,6-diamine
15%
C. Decane-1,10-diol, Hexanedioic acid
18%
D. Hexane-1,6-diol, Decanedioic acid
S1:
Which of the following is the electronic configuration of the Fe²⁺ ion?
[Proton no: Fe=26]
Which of the following is the electronic configuration of the Fe²⁺ ion?
[Proton no: Fe=26]
Final Results
22%
A. 1s²2s²2p⁶3s²3p⁶3d⁵4s¹
15%
B. 1s²2s²2p⁶3s²3p⁶3d⁴4s²
12%
C. 1s²2s²2p⁶3s²3p⁶3d⁶4s²
50%
D. 1s²2s²2p⁶3s²3p⁶3d⁶
S1:
X forms an unstable tetrachloride, which decomposes slowly under room conditions.
Which of the following statements is true?
X forms an unstable tetrachloride, which decomposes slowly under room conditions.
Which of the following statements is true?
Final Results
24%
A. X is a non-metal with the general valence electronic configuration ns²np².
17%
B. XO is a thermally unstable compound.
37%
C. XO₂ acts as an oxidising agent when it reacts with hot acid.
23%
D. The +4 oxidation state of X is more stable than the +2 oxidation state.
S1:
Which halogen only exhibits one oxidation state in its compounds?
Which halogen only exhibits one oxidation state in its compounds?
Final Results
13%
A. Br
16%
B. Cl
55%
C. F
16%
D. I
S3T18:
Which of the following statements is incorrect?
Which of the following statements is incorrect?
Final Results
22%
A. Both glucose and fructose are reducing sugars.
23%
B. Glucose reacts with fructose to form sucrose, a non-reducing sugar.
16%
C. Glucose is an aldohexose while fructose is a ketohexose.
39%
D. Glucose is soluble in water while fructose is insoluble in water.
S3T18:
Which of the following reagents cannot be used to differentiate between ethanal and propan-2-ol?
Which of the following reagents cannot be used to differentiate between ethanal and propan-2-ol?
Final Results
24%
A. ZnCl₂, HCl
11%
B. Cu²⁺, ⁻OH
45%
C. I₂, NaOH
19%
D. [Ag(NH₃)₂]⁺, ⁻OH
S3T18:
What type of reaction does propanal undergo when it reacts with Tollens' reagent?"
What type of reaction does propanal undergo when it reacts with Tollens' reagent?"
Final Results
12%
A. Addition
20%
B. Condensation
19%
C. Reduction
48%
D. Oxidation
❤1
S3T18:
Which of the following reagents can be used to differentiate ethanal and propanal?
Which of the following reagents can be used to differentiate ethanal and propanal?
Final Results
13%
A. ZnCl₂, HCl
65%
B. I₂, NaOH
9%
C. Cu²⁺, ⁻OH
13%
D. [Ag(NH₃)₂]⁺, ⁻OH
S3T18:
The reaction of carbonyl compounds with Brady's reagent (2,4-dinitrophenylhydrazine) is a type of
The reaction of carbonyl compounds with Brady's reagent (2,4-dinitrophenylhydrazine) is a type of
Final Results
10%
A. addition reaction
11%
B. oxidation reaction
16%
C. reduction reaction
63%
D. condensation reaction
S1T7:
Which of the following combinations has the greatest difference in boiling points?
Which of the following combinations has the greatest difference in boiling points?
Anonymous Quiz
53%
A. HF, HI
11%
B. HCl, HI
3%
C. HCl, HBr
33%
D. HF, HCl
S1T7:
Which of the following halide salts reacts with concentrated sulphuric acid to produce the most reduced sulphur product?
Which of the following halide salts reacts with concentrated sulphuric acid to produce the most reduced sulphur product?
Anonymous Quiz
44%
A. KI
16%
B. CaF₂
15%
C. NaBr
25%
D. MgCl₂
S1T7:
Which of the following combinations has the greatest difference in oxidation states of chlorine?
Which of the following combinations has the greatest difference in oxidation states of chlorine?
Anonymous Quiz
15%
A. HCl, ClO₂
52%
B. HCl, HClO₄
10%
C. NaCl, NaClO
23%
D. NaCl, NaClO₃
S3T19:
Which of the following is the IUPAC nomenclature for HOOC-COOH?
Which of the following is the IUPAC nomenclature for HOOC-COOH?
Anonymous Quiz
22%
A. Oxalic acid
8%
B. Ethanoic acid
54%
C. Ethanedioic acid
16%
D. Ethane-1,2-dicarboxylic acid
S3T19:
Which of the following is the systematic name for HOOC-CH₂-C(OH)(COOH)-CH₂-COOH?
Which of the following is the systematic name for HOOC-CH₂-C(OH)(COOH)-CH₂-COOH?
Anonymous Quiz
33%
A. 3-hydroxypentane-1,3,5-trioic acid
35%
B. 3-hydroxypentane-1,3,5-tricarboxylic acid
10%
C. 2-hydroxypropane-1,2,3-trioic acid
22%
D. 2-hydroxypropane-1,2,3-tricarboxylic acid
S3T19:
X is the simplest alkene which undergoes oxidation with hot KMnO₄, H⁺ to form a stable carboxylic acid. Which of the following statements is true?
X is the simplest alkene which undergoes oxidation with hot KMnO₄, H⁺ to form a stable carboxylic acid. Which of the following statements is true?
Anonymous Quiz
37%
A. X is ethene.
19%
B. Oxidative cleavage doesn't occur during the reaction.
21%
C. An inorganic carbon side product is formed in the reaction.
23%
D. The carboxylic acid formed reacts with ethanol to produce ethyl propanoate.
S3:
H₂O, ⁻CN, and ⁻OH are classified as:
H₂O, ⁻CN, and ⁻OH are classified as:
Anonymous Quiz
21%
A. electrophile
71%
B. nucleophile
3%
C. free radical
5%
D. Lewis acid
S1:
Which of the following statements is NOT true?
Which of the following statements is NOT true?
Anonymous Quiz
21%
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.
13%
C. Among the Period 3 elements, Ar has the lowest melting point.
27%
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?
Anonymous Quiz
2%
A. Hund's rule
63%
B. Saytzeff's rule
10%
C. Hofmann's rule
26%
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?
Anonymous Quiz
69%
A. Hund's rule
15%
B. Aufbau principle
15%
C. Pauli exclusion principle
0%
D. Heisenberg Uncertainty Principle