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Chemistry
WAEC / WASSCE 2005
Organic Chemistry II: Functional Groups, Polymers & Biomolecules
Reaction undergone by compounds with the general formula Cn H2n+2 include
A
addition
B
esterification
C
substitution
D
dehydration
medium Difficulty
Verified Correct Answer: Option C
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #37095)
Chemistry
WAEC / WASSCE 2005
Stoichiometry, Mole Concept & Volumetric Analysis
What is the major product formed when C2H5OH reacts with CH3COOH?
A
C2H5COOCH3
B
C2HCOCH3
C
CH3COOC2H5
D
C3H7COOH
medium Difficulty
Verified Correct Answer: Option C
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #37096)
Chemistry
WAEC / WASSCE 2005
Organic Chemistry II: Functional Groups, Polymers & Biomolecules
Which of the following substances is a non-reducing sugar?
A
Sucrose
B
Glucose
C
Fructose
D
Maltose
medium Difficulty
Verified Correct Answer: Option A
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #37097)
Chemistry
WAEC / WASSCE 2005
Oxidation, Reduction & Redox Reactions
The colour of the solution formed when ethyne reacts with an acidic solution of potassium tetraoxomanganate (VII) is
A
purple
B
colourless
C
green
D
pink
medium Difficulty
Verified Correct Answer: Option B
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #37098)
Chemistry
WAEC / WASSCE 2005
Organic Chemistry II: Functional Groups, Polymers & Biomolecules
Fats are classified as
A
hydrocarbons
B
alkanoates
C
alkanols
D
carbohydrates
medium Difficulty
Verified Correct Answer: Option B
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #37099)
Chemistry
WAEC / WASSCE 2005
Organic Chemistry I: Hydrocarbons & Crude Oil
Ethyne undergoes the following reactions except
A
polymerisation
B
addition
C
substitution
D
esterification
medium Difficulty
Verified Correct Answer: Option D
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #37100)
Chemistry
WAEC / WASSCE 2005
Water, Solutions & Solubility
Hardness in water can be removed by adding
A
copper (ll) tetraoxosulphate (IV)
B
sodium trioxocarbonate (IV)
C
sodium chloride
D
alum
medium Difficulty
Verified Correct Answer: Option B
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #37101)
Chemistry
WAEC / WASSCE 2005
Stoichiometry, Mole Concept & Volumetric Analysis
Solution
Which of the following pairs of solutions will produce a precipitate when mixed?
A
Pb(NO3)2(aq) and NaCI(aq)
B
MgSO4(aq) and HCI(aq)
C
ZnCI2(aq) and NaSO4(aq)
D
NaOH(aq) and HNO3(aq)
medium Difficulty
Verified Correct Answer: Option A
Chemical Principles & Mechanism
\(Pb(NO_3)_{2(aq)} + 2NaCl → PbCl_2 + 2NaNO_3\) Option A will produce insoluble lead(II) chloride.( precipitate)
Source: Myschool Past Questions Archive (Record #37102)
Chemistry
WAEC / WASSCE 2005
Metals, Transition Elements & Extraction
Which of the following substance is an alloy of lead?
A
Brass
B
Duralumin
C
Stainless steel
D
Soft solder
medium Difficulty
Verified Correct Answer: Option D
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #37103)
Chemistry
WAEC / WASSCE 2005
Air & Environmental Chemistry
In which of the following processes is biotechnology not applied?
A
Manufacture of drugs
B
Treatment of domestic sewage
C
Production of alcoholic beverages
D
Electroplating of metals
medium Difficulty
Verified Correct Answer: Option D
Chemical Principles & Mechanism
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #37104)
English Language
WAEC / WASSCE 2005
Concord (Subject-Verb Agreement)
From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences.
The test was so difficult that.........students passed
A
some few
B
a few
C
few
D
fewest
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 #25460)
English Language
WAEC / WASSCE 2005
Concord (Subject-Verb Agreement)
Solution
From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences.
Please can you...............money?
A
lend me little
B
borrow me a little
C
lend me some
D
borrow me some
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
''Borrow” means that you want to temporarily take something or you're letting someone take something that belongs to you; “borrowed” is the past tense.
“Lend” means you’re giving something to someone or asking someone to give you an item you need; “lent” is the past tense.
Substitute “take” to check if “borrow” is the right word, and “give” to check if “lend” is the right word.
Source: Myschool Past Questions Archive (Record #25461)
English Language
WAEC / WASSCE 2005
Concord (Subject-Verb Agreement)
From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences.
.............at 5 0'clock every morning was one of the regulations he detested most at school
A
to be waking up
B
waking up
C
having to be waking up
D
to be waking
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 #25462)
English Language
WAEC / WASSCE 2005
Concord (Subject-Verb Agreement)
From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences.
If you had waited five minutes longer, you...........her
A
would be able to see
B
will be able to see
C
would have been able to see
D
will have seen
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 #25463)
English Language
WAEC / WASSCE 2005
Concord (Subject-Verb Agreement)
From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences.
She asked the driver to..................at the school gate.
A
drop her
B
drop her down
C
drop her out
D
drop her in
medium Difficulty
Verified Correct Answer: Option A
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #25464)