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Chemistry
UTME / JAMB 2009
Organic Chemistry II: Functional Groups, Polymers & Biomolecules
Solution
An organic compound reacted with bromine water to give a colourless solution. The compound is probably an?
A
alkene
B
alkanal
C
alkyl
D
alkanone
medium Difficulty
Verified Correct Answer: Option A
Chemical Principles & Mechanism
Alkenes react in the cold with pure liquid bromine, or with a solution of bromine in an organic solvent like tetrachloromethane. The double bond breaks, and a bromine atom becomes attached to each carbon. The bromine loses its original red-brown colour to give a colourless liquid.
Alkynes also react with bromine, decolorising it though not as immediate as alkenes.
Source: WAEC / JAMB / NECO Classroom Archive (Record #4458)
Chemistry
UTME / JAMB 2009
Organic Chemistry I: Hydrocarbons & Crude Oil
Solution
Which of the following molecules has two other positional isomers?
A
CH3CH2Br
B
CH3CHBrCH3
C
CBr2F2
D
CH2CHBrCH2Br
medium Difficulty
Verified Correct Answer: Option D
Chemical Principles & Mechanism
Positional isomers, also known as position isomers, are molecules with the same molecular formula and the same functional groups, but where the functional groups are in different positions on the carbon chain. This type of structural isomerism results in molecules with distinct properties despite having the same overall chemical composition.
In Option D, the compound CH\(_2\)CHBrCH\(_2\)Br (1,2- dibromopropane) has two other isomers with itself as 1,1-dibromopropane and 2,2-dibromopropane. Hence, it is the correct answer.
Source: WAEC / JAMB / NECO Classroom Archive (Record #4348)
Chemistry
UTME / JAMB 2009
Organic Chemistry I: Hydrocarbons & Crude Oil
Solution
Organic molecules that have the suffix-ene are unsaturated hydrocarbons that have?
A
a single bond
B
a double bond
C
a triple bond
D
an ionic bond
medium Difficulty
Verified Correct Answer: Option B
Chemical Principles & Mechanism
In chemistry, an alkene is a hydrocarbon containing a carbon–carbon double bond. Alkene is often used as synonym of olefin, that is, any hydrocarbon containing one or more double bonds.
Source: WAEC / JAMB / NECO Classroom Archive (Record #4462)
English Language
UTME / JAMB 2009
Concord (Subject-Verb Agreement)
Choose the option that best explains the information conveyed in the sentence.
It was our collective idea but Ado was doing everything to steal the show.
A
Ado was not part of the planning but he tried rub us of the benefit of it
B
We planned the show together but Ado was trying to abort it
C
It was a joint project but Ado is trying to attract the most attention
D
We collated the idea for the show but Ado was trying to steal the programme
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #12406)
English Language
UTME / JAMB 2009
Concord (Subject-Verb Agreement)
Choose the option that best explains the information conveyed in the sentence.
As we watched, he just popped along to the shop for some bread?
A
He has walked slowly to the shop
B
He stole some bread from the shop but we could not stop him
C
H e broke into the bread shop before our very eyes
D
He went quickly to the shop for some bread
medium Difficulty
Verified Correct Answer: Option D
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #12409)
English Language
UTME / JAMB 2009
Concord (Subject-Verb Agreement)
Solution
Choose the option that best explains the information conveyed in the sentence.
In all ramifications, Chief Adeyemi was a successful principal of the school?
A
He was partly a failure and partly a success
B
Everyone admitted that he was largely successful during his tenure
C
He was not totally successful in the school
D
His tenure witnessed a huge success
medium Difficulty
Verified Correct Answer: Option D
Grammar & Contextual Explanation
The phrase "In all ramifications" means "in every aspect" or "in all respects." This suggests that Chief Adeyemi was entirely successful in his role as principal.
Source: Myschool Past Questions Archive (Record #12411)
English Language
UTME / JAMB 2009
Concord (Subject-Verb Agreement)
Solution
Choose the option that best explains the information conveyed in the sentence.
I couldn't buy the biscuit because of the hold-up in the supermarket.
A
The shop had not opened
B
The attendant was slow
C
Armed robbers were there
D
There was nobody to attend to me
medium Difficulty
Verified Correct Answer: Option B
Grammar & Contextual Explanation
The key expression in the sentence is “hold-up.” In this context, “hold-up” means a delay or something that slows down a process. So the sentence:
“I couldn't buy the biscuit because of the hold-up in the supermarket.”
means that there was a delay in the supermarket which prevented the purchase. Among the options, “the attendant was slow” best explains a delay in service, which could cause such a hold-up.
Source: Myschool Past Questions Archive (Record #12412)
English Language
UTME / JAMB 2009
Concord (Subject-Verb Agreement)
Solution
Choose the option that best explains the information conveyed in the sentence.
You could have heard the sound if you weren't asleep.
A
You were not asleep so you heard the sound
B
You were asleep so you did not hear the sound
C
You heard the sound though you were asleep
D
You did not hear the sound though you were not asleep
medium Difficulty
Verified Correct Answer: Option B
Grammar & Contextual Explanation
The sentence "You could have heard the sound if you weren't asleep" is a conditional sentence using the third conditional structure. It implies that hearing the sound was a possibility, but the condition (not being asleep) was not met.
The phrase "could have heard" suggests a missed opportunity.
"If you weren't asleep" suggests that the person was actually asleep at the time.
Thus, the sentence conveys that the person was asleep and, as a result, did not hear the sound.
Source: Myschool Past Questions Archive (Record #12413)
English Language
UTME / JAMB 2009
Concord (Subject-Verb Agreement)
Choose the option that best explains the information conveyed in the sentence.
Musa will not do the job well because he has an itching palm?
A
He has rashes in his palm
B
He is always looking for something to touch
C
He is always ready to accept bribe
D
He is tapping people on the back
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #12415)
English Language
UTME / JAMB 2009
Concord (Subject-Verb Agreement)
Select the option that best explains the information conveyed in the sentence.
Emeka was always conspicuous by his absence when it came to attending lectures.
A
That Emeka always attended lectures at school
B
Emeka absence from lectures was all too glaring
C
It was obvious that Emeka was not present at lectures
D
What made Emeka conspicuous was is occasional absence from school
medium Difficulty
Verified Correct Answer: Option B
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #12429)
English Language
UTME / JAMB 2009
Concord (Subject-Verb Agreement)
Select the option that best explains the information conveyed in the sentence.
He was injured by a friendly fire?
A
He was wounded in a war by a friend of his who fired a shot mistakenly
B
He was injured by a gun shot that was fired by a friend
C
He was hit in a war by a war weapon fired by his own side
D
It was a war and he was hit by a bomb fired by an unknown soldier
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #12430)
English Language
UTME / JAMB 2009
Concord (Subject-Verb Agreement)
Select the option that best explains the information conveyed in the sentence.
Kola visits us on occasions, and I don't like that?
A
I do not like Kola because he visits us only when an event is being celebrated
B
I hate the fact that Kola only visits us when something is being celebrated
C
That Kola does not visit us often is something I object to
D
Kola seldom visits us and that is because he is a fair-weather friend
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #12432)
English Language
UTME / JAMB 2009
Concord (Subject-Verb Agreement)
Select the option that best explains the information conveyed in the sentence.
At the time I arrived, Olu was lying in third place?
A
Olu's third position coincided with my arrival
B
When I arrived, Olu was sleeping in the space reserved for him
C
It was a competition and Olu was in third position when I arrived
D
On my arrived at the competition, Olu went to sleep
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #12433)
English Language
UTME / JAMB 2009
Antonyms (Opposite in Meaning)
Choose the option opposite in meaning to the underlined word(s).
We had difficulty eating the meat because it was leathery?
A
bitter
B
stringy
C
tough
D
tender
medium Difficulty
Verified Correct Answer: Option D
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #12434)
English Language
UTME / JAMB 2009
Antonyms (Opposite in Meaning)
Choose the option opposite in meaning to the underlined word(s).
They boy is too indolent to do well at school?
A
intelligent
B
industrious
C
inactive
D
slothful
medium Difficulty
Verified Correct Answer: Option B
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #12436)