Secondary>Science>>Chemistry>>>JAMB 2018
Ethene and ethane have the same
Ethene and ethane have the same A. chemical properties B. density C. number of carbo…
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Secondary>Science>>Chemistry>>>JAMB 2019
Unsaturated organic compounds are identified by decolourization of
Unsaturated organic compounds are identified by decolourization of A. silver b…
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Secondary>Science>>Chemistry>>>JAMB 2019
Methane is tetrahedral because it is
Methane is tetrahedral because it is A. sp hybridize B. sp^2 hybridize C. sp^3 …
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Secondary>Science>>Chemistry>>>JAMB 2019
Which of the following molecules is not linear?
Which of the following molecules is not linear? A. CO2 B. SO2 C. HCl D. O2 The …
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Secondary>Science>>Chemistry>>>JAMB 2019
The graph that describes a zero order reaction is
The graph that describes a zero order reaction is The correct graph is You sai…
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Secondary>Science>>Chemistry>>>JAMB 2019
Which of the following noble gases is used in filling balloons?
Which of the following noble gases is used in filling balloons? A. Kr B. Xe C. …
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Secondary>Science>>Chemistry>>>JAMB 2019
The statement "volume is inversely proportional to pressure at constant temperature" is
The statement "volume is inversely proportional to pressure at constant t…
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Secondary>Science>>Chemistry>>>JAMB 2019
How many electrons are present in 20_X^2+?
How many electrons are present in 20_X^2+? A. 22 B. 20 C. 2 D. 18 The correct a…
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Secondary>Science>>Chemistry>>>JAMB 2019
Sucrose is made up of
Sucrose is made up of A. glucose and glucose B. glucose and fructose C. fructo…
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Secondary>Science>>Chemistry>>>JAMB 2019
Which of the following gives a silver mirror with Tollen reagent?
Which of the following gives a silver mirror with Tollen reagent? A. alkanal B…
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Secondary>Science>>Chemistry>>>JAMB 2019
A common characteristics of copper of copper and silver in their usage as coinage metals is that they
A common characteristics of copper of copper and silver in their usage as coin…
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Secondary>Science>>Chemistry>>>JAMB 2019
What mass of copper will be produced from 0.5 Faraday of electricity [Cu=63.5].
What mass of copper will be produced from 0.5 Faraday of electricity [Cu=63.5].…
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Secondary>Science>>Chemistry>>>JAMB 2019
Synthesis gas is a mixture of
Synthesis gas is a mixture of A. CH4 and H2O B. CH4 and H2 C. CO2 and H2 D. CO…
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Secondary>Science>>Chemistry>>>JAMB 2019
Which of the following is a fine chemical?
Which of the following is a fine chemical? A. H2SO4 B. NH3 C. NaOH D. Dye The c…
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Secondary>Science>>Chemistry>>>JAMB 2019
To increase the rate of a chemical, a catalyst
To increase the rate of a chemical, a catalyst A. decreases the activation en…
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Secondary>Science>>Chemistry>>>JAMB 2019
Which of the following salt is a double salt?
Which of the following salt is a double salt? A. Mg(OH)NO3 B. NaHCO3 C. KAI(SO…
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Secondary>Science>>Chemistry>>>JAMB 2019
1/2Zn^2+ (aq) + e^- 一> 1/2Zn (s). In the reaction above, calculate the quantity of electricity required to discharge zinc?
1/2Zn^2+ (aq) + e^- 一> 1/2Zn (s). In the reaction above, calculate the quant…
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Secondary>Science>>Chemistry>>>JAMB 2019
Who discovered the charge of an electron?
Who discovered the charge of an electron? A. Milikan B. Dalton C. Moseley D. Ru…
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Secondary>Science>>Chemistry>>>JAMB 2019
C2H4(g) + 3O2(g) 一> 2CO2(g) + 2H2O(g) From the reaction above, calculate the quantity of electricity required to discharge zinc.
C2H4(g) + 3O2(g) 一> 2CO2(g) + 2H2O(g) From the reaction above, what mole of …
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Secondary>Science>>Chemistry>>>JAMB 2019
Which of the following is suitable for removing both temporary and permanent hardness?
Which of the following is suitable for removing both temporary and permanent ha…
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Secondary>Science>>Chemistry>>>JAMB 2019
How many moles of HCl will be required to react with potassium heptaoxodichromate (VI) to produce3 moles of chlorine?
How many moles of HCl will be required to react with potassium heptaoxodichroma…
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Secondary>Science>>Chemistry>>>JAMB 2019
What volume of oxygen will be present in 150 cm^3 of air at 20^0 C?
What volume of oxygen will be present in 150 cm^3 of air at 20^0 C? A. 21 cm^3 …
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Secondary>Science>>Chemistry>>>JAMB 2019
Alkanone are generally obtained by the oxidation of
Alkanone are generally obtained by the oxidation of A. primary alkanols B. se…
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Secondary>Science>>Chemistry>>>JAMB 2019
CaCO3 + 2HCl 一> CaCl2 + H2O + CO2 From the equation above, what mass of CaCO3 will be required to produce 11.1g of CaCl2? [Ca=40, C=12, O=16, Cl=35.5]
CaCO3 + 2HCl 一> CaCl2 + H2O + CO2 From the equation above, what mass of CaCO…
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Secondary>Science>>Chemistry>>>JAMB 2019
The electron configuration of 22 X^2+ ion is
The electron configuration of 22 X^2+ ion is A. 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 …
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Secondary>Science>>Chemistry>>>JAMB 2019
What is the volume of a gas at 20^0C If its original volume at 60^)C is 300 cm^3? If the pressure is constant
What is the volume of a gas at 20^0C If its original volume at 60^)C is 300 cm^…
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Secondary>Science>>Chemistry>>>JAMB 2019
The best technique for separating the components of a dye is
The best technique for separating the components of a dye is A. chromatography …
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Secondary>Science>>Chemistry>>>JAMB 2019
The reaction of carbide with water gives
The reaction of carbide with water gives A. ethyne B. ethane C. ethene D. etha…
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Secondary>Science>>Chemistry>>>JAMB 2019
The chlorinated alkane often used industrially to remove grease is
The chlorinated alkane often used industrially to remove grease is A. tetrachlo…
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Secondary>Science>>Chemistry>>>JAMB 2019
Which of the following has the highest hydroxyl ion concentration?
Which of the following has the highest hydroxyl ion concentration? A. HCl B. NH…
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Secondary>Science>>Chemistry>>>JAMB 2019
The substance often used for vulcanization of rubber is
The substance often used for vulcanization of rubber is A. chlorine B. hydroge…
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Secondary>Science>>Chemistry>>>JAMB 2020
Temporary hard water is formed when rain was containing dissolved carbon (IV) oxide flows over deposit of
Temporary hard water is formed when rain was containing dissolved carbon (IV) o…
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Secondary>Science>>Chemistry>>>JAMB 2020
Calculate the amount in moles of a gas which occupies 10.5dm^3 at 6 atm. and 30^0C (R=0.82atm dm^-3 K^-1 Mol^-1)
Calculate the amount in moles of a gas which occupies 10.5dm^3 at 6 atm. and 30…
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Secondary>Science>>Chemistry>>>JAMB 2020
Calculate the quantity of electricity in coulombs required to liberate 10g of copper from a copper compound [Cu=64, F=96500Cmol^-1]
Calculate the quantity of electricity in coulombs required to liberate 10g of c…
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Secondary>Science>>Chemistry>>>JAMB 2020
An element A has atomic number 14 and three isotopes 28^A, 29^A, and 30^A with relative abundances of 92.2%, 4.7% and 3.1% respectively, what is the relative atomic mass of the element?
An element A has atomic number 14 and three isotopes 28^A, 29^A, and 30^A with…
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Secondary>Science>>Chemistry>>>JAMB 2020
How many electrons are present in 20X^2+?
How many electrons are present in 20X^2+? A. 22 B. 20 C. 2 D. 18 The symbol ₂₀…
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Secondary>Science>>Chemistry>>>JAMB 2020
A red precipitate of copper (I) carbide is formed when ammonium solution of copper (I) chloride is introduced into
A red precipitate of copper (I) carbide is formed when ammonium solution of cop…
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Secondary>Science>>Chemistry>>>JAMB 2020
What mass of copper will be produced from 0.5 Faraday of electricity [Cu=63.5].
What mass of copper will be produced from 0.5 Faraday of electricity [Cu=63.5].…
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Secondary>Science>>Chemistry>>>JAMB 2020
What current will deposit 3.25g of zinc in 2 hrs? [Zn=65, F=96500Cmol^-1]
What current will deposit 3.25g of zinc in 2 hrs? [Zn=65, F=96500Cmol^-1] A. 3.…
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Secondary>Science>>Chemistry>>>JAMB 2020
Alkanone are generally obtained by the oxidation of
Alkanone are generally obtained by the oxidation of A. primary alkanols …
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Secondary>Science>>Chemistry>>>JAMB 2020
25.00cm^3 of sodium trioxocarbonate (IV) solution neutralizes 22.50cm^3 of 0.05moldm^-3 hydrochloric acid. Calculate the concentration of Na2CO3.
25.00cm^3 of sodium trioxocarbonate (IV) solution neutralizes 22.50cm^3 of 0.05…
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Secondary>Science>>Chemistry>>>JAMB 2020
Ca(OH)2(aq) + 2NH4Cl 一> CaCl2(s) + 2H2O(l) + X. In the reaction above, X is
Ca(OH)2(aq) + 2NH4Cl 一> CaCl2(s) + 2H2O(l) + X. In the reaction above, X is…
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Secondary>Science>>Chemistry>>>JAMB 2018
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