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Chemistry UTME / JAMB 2011 Organic Chemistry
Which of the following compounds will undergo polymerization reaction?
A
C2H4
B
C2H5COOH
C
C2H6
D
C2H5OH
medium Difficulty
Chemistry UTME / JAMB 2011 Stoichiometry & Mole Concept
An organic compound has an empirical formula CH2O and vapour density of 45. What is the molecular formula? [C = 12, H = 1, O = 16]
A
C3H7OH
B
C2H5OH
C
C3H6O3
D
C2H4O2
medium Difficulty
Chemistry UTME / JAMB 2011 Kinetics, Energetics and Equilibrium
At 25o and zymase as catalyst, C6H126 → 2C2H5OH + 2CO2 + energy The reaction above represented by the equation above is useful in the production of
A
propanol
B
butanol
C
methanol
D
ethanol
medium Difficulty
Chemistry UTME / JAMB 2011 Organic Chemistry
The number of isomers that can be obtained from C\(_4\)H\(_{10}\) is
A
3
B
4
C
1
D
2
medium Difficulty
Chemistry UTME / JAMB 2011 Matter & Separation Techniques
The functional groups present in the compound above are
Attached Figure / Diagram
Question diagram
A
alkene and halo-group
B
hydroxyl and chloro-group
C
alkene and chloro-group
D
hydroxyl and halo-group
medium Difficulty
Chemistry UTME / JAMB 2011 Matter & Separation Techniques
Two organic compounds K and L were treated with a few drops of Fehling's solutions respectively . K formed a brick-red precipitate while L, remains unaffected. The compound K is an
A
alkanol
B
alkane
C
alkanal
D
alkanone
medium Difficulty
Chemistry UTME / JAMB 2011 Matter & Separation Techniques
Which of the following statements is true about 2-methylpropane and butane
A
They are not members of the same homologous series
B
They have the same boiling point
C
They have different number of carbon atoms
D
They have the same chemical properties
medium Difficulty
Chemistry UTME / JAMB 2011 Kinetics, Energetics and Equilibrium
with conc H2SO4 as catalyst CH3COOH + C2H5OH → CH3COOC2H5 + H2O
A
esterification
B
Condensation
C
saponification
D
neutralization
medium Difficulty
Chemistry UTME / JAMB 2011 Matter & Separation Techniques
The principle of column chromatography is based on the ability of the constituents to
A
move at different speeds in the column
B
dissolve in each other in the column
C
react with the solvent in the column
D
react with each other in the column
medium Difficulty
Chemistry UTME / JAMB 2011 Matter & Separation Techniques
In the diagram above , X is the ``
Attached Figure / Diagram
Question diagram
A
enthalpy
B
enthalpy change
C
activation energy
D
activated complex
medium Difficulty
Chemistry UTME / JAMB 2011 Matter & Separation Techniques
choose the correct answer in the option above. Which of the following is a primary amine?
Attached Figure / Diagram
Question diagram
A
A
B
B
C
C
D
D
medium Difficulty
Chemistry WAEC / WASSCE 2011 Atomic Structure and Periodic Table
How many isotopes has hydrogen?
A
2
B
3
C
4
D
5
medium Difficulty
Chemistry WAEC / WASSCE 2011 Atomic Structure and Periodic Table
Which of the following electrons configurations correctly represents an inert element?
A
1s22s22p4
B
1s22s22p63s2
C
1s22s22p63s23p4
D
1s22s22p6
medium Difficulty
Chemistry WAEC / WASSCE 2011 Matter & Separation Techniques
What type of reaction is represented by the following equation?\(\frac{2}{1}\)D\(\frac{3}{1}\)H → \(\frac{4}{4}\)He + \(\frac{1}{0}\)n + energy
A
Nuclear fission
B
Nuclar fusion
C
Radioactive decay
D
Spontaneous decay
medium Difficulty
Chemistry WAEC / WASSCE 2011 Atomic Structure and Periodic Table
An element with the electron configuration of 1s 22s 22p 6 would have a combining power of
A
o
B
2
C
6
D
8
medium Difficulty
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