JAMB Chemistry 2011 Past Questions

What is the concentration of a solution containing 2g of NaOH in 100cm³ of solution?
[Na = 23, O = 16, H = 1]

Which of the following properties is NOT peculiar to matter?

From the diagram above, an ideal can be represented by

Which of the following questions is correct about the periodic table?

The relative atomic mass of a naturally occurring lithium consisting of 90% Li and 10% Li is

An isotope has an atomic number of 15 and a mass number of 31. The number of protons it contain is

The molecular lattice of iodine is held together by

The arrangement of particles in crystal lattices can be studied using

From the diagram above, find the amount of solute deposited when 200 cm³ of the solution is cooled from 55^oC to 40^oC

The importance of sodium aluminate (III) in the treatment of water is to

What type of bond exits between an element X with atomic number 12 and Y with atomic number 17?

Hardness of water is mainly due to the presence of

A suitable solvent for iodine and nephthalene is

N₂O_4(g) ↔ 2NO_2(g) ΔH = +ve
In the reaction above, an increase in temperature will

CH₃COOH_(aq) + OH^-_(aq) ↔ CH₃COO^-_(aq) + H₂O_(l)
In the reaction above ,CH₃COO^-_(aq) is

How many cations will be produced from a solution of potassium aluminium tetraoxosulphate (VI)?

Which of the following is NOT an alkali?

An effect of thermal pollution on water bodies is that the

Which of the following is a deliquescent compound?

A chemical reaction which the hydration energy is greater than the lattice energy is referred to as

The function of zinc electrode in a galvanic cells is that it

CH_4(g) + Cl_2(g) → CH₃ Cl_(s) + HCl_(g)
The major factor that influence the rate of the reaction above is

The condition required for corrosion to take place is the presence of

The diagram above best illustrates the effect of decrease in

MnO^-_4(aq) + Y + 5Fe²⁺_(aq) → Mn²⁺_(aq) + 5Fe²⁺_(aq) + 4H₂O^(l)
In the equation above, Y is

Given that M is the mass of a substance deposited during electrolysis and Q is the quantity of electricity consumed, then Faraday's first law can be written as
[Electrochemical equivalent]

The impurities formed during the laboratory preparation of chlorine gas are removed by

The effect of the presence of impurities such as carbon and sulphur on iron is that they

A few drops of concentrated HNO₃ is added to an unknown solution and boiled for a while. If this produces a brown solution, the cation presents is likely to be

The bleaching action of chlorine gas is effective due to the presence of

In the laboratory preparation of oxygen, dried oxygen is usually collected over

The property of concentrated H₂SO₄ that makes it suitable for preparing HNO₃ is its

Bronze is preferred to copper in the making of medals because it

The constituents of baking powder that makes the dough to rise is

The ability of carbon to form long chains is referred to as

Which of the following compounds will undergo polymerization reaction?

The compound above exhibits

An organic compound has an empirical formula CH₂O and vapour density of 45.
What is the molecular formula?
[C = 12, H = 1, O = 16]

At 25^o and zymase as catalyst,
C₆H₁₂₆ → 2C₂H₅OH + 2CO₂ + energy
The reaction above represented by the equation above is useful in the production of

The number of isomers that can be obtained from C₄H₁₀ is

The functional groups present in the compound above are

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

Which of the following statements is true about 2-methylpropane and butane

with conc H₂SO₄ as catalyst
CH₃COOH + C₂H₅OH → CH₃COOC₂H₅ + H₂O

In the diagram above , X is the ``

The compound above exhibits

choose the correct answer in the option above. Which of the following is a primary amine?

The principle of column chromatography is based on the ability of the constituents to