2016 JAMB Chemistry Past Questions CBT

The compound above exhibits

MnO^–_4(aq) + Y + 5Fe²⁺_(aq) → Mn²⁺_(aq) + 5Fe³⁺_(aq) + 4H₂O_(l)

In the equation above, Y is

In an electrochemical cell, polarization is caused by

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

The enzyme used in the hydrolysis of starch to dextrin and maltose is

The product formed when propanol is heated over a copper catalyst in the absence of oxygen are

In the laboratory preparation of chlorine from concentrated hydrochloric acid in the presence of potassium tetraoxomanganate(VII), the product is dried by passing it through

Which of the following compounds is used as a gaseous fuel?

Cast iron is used in making

The monomer of nylon is

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

Ammonium chloride can be separated from its mixture with common salt by

The functional groups present in the compound above are

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

Alkanols have the general molecular formula

The industrial preparation of hydrogen gas from water gas is referred to as

The relative atomic mass of a naturally occurring lithium consisting of:

\( \scriptsize 90\%\;  _3^7Li  \)

and \( \scriptsize 10\% \;  _3^6  Li \; is \)

The colour of litmus in an alkaline medium is

n monosaccharide \(\normalsize \overset{P}{\underset{Q}{\rightleftharpoons} }\) polysaccharide – n water.

In the process above, P and Q respectively represent

The compounds CH₃CH₂CHO and CH₃COCH₃ can be distinguished from each other using

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

\(\scriptsize N_2O_{4(g)} \rightleftharpoons 2NO_{2(g)} \: \: \Delta H = +ve \)

In the reaction above, an increase in temperature will

The process that requires the use of hardwater in its operation is

What is the concentration of a solution containing 2g of NaOH in 100 cm³ of solution?

[Na = 23, O = 16, H = 1]

The radioisotope used in industrial radiography for the rapid checking of faults in welds and casting is

The compound produced when sodium peroxide is heated with excess sodium is

The pollutant that contributes to the depletion of the ozone layer is

Which of the following properties is not peculiar to matter?

In the diagram above, X is the

The diagram represents

Which of the following is not an alkali?

The curve depicts titration between

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

The metal whose ore can be concentrated by passing it through a magnetic separator is

An example of an acidic oxide is

What volume of 0.5 M H₂SO₄ will exactly neutralize 20 cm³ of 0.1 M NaOH Solution?

Diamond cannot be used

Ethanol is soluble in water due to the presence of a

CH₄(g) + Cl₂(g) → CH₃Cl(g) + HCl(g)

The major factor that influences the rate of the reaction above is

The number of electronic shells contained in an atom with electron configuration

1s²2s²2p⁶3s²3p⁶4s² is

The drying agent suitable for drying ammonia is

The arrangement of particles in crystal lattices can be studied using

In the extraction of iron, the waste gas from the furnace is a mixture of

In a neutralization reaction involving HCI and NaOH using litmus as indicator, the colour at the end point is

An example of a solid emulsion is

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

Calculate the volume in cm³ of oxygen evolved at s.t.p when a current of 5 A is passed through acidified water for 193 s

[F = 96500 C mol^-1. Molar volume of a gas at s.t.p = 22.4 dm³]

The element that is used for the treatment of cancer is

From the diagram above, an ideal gas can be represented by

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