CBT Chemistry JAMB 2016

1 In an electrochemical cell, polarization is caused
by

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

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

4 In the laboratory preparation of chlorine from
concentrated hydrochloric acid in the presence of
potassuim tetraoxomanganate(VII) the produced is
dried by passing it through

5 The monomer of nylon is

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

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

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

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

10 The relative atomic mass of a naturally occurring
lithium consisting of 90% (7/3)Li and 10% (6/3)Li is

11 The colour of litmus in an alkaline medium is

12 The compounds CH 3 CH 2 CHO and CH 3 COCH 3
can be distinguished from each other using

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

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

15 What is the concentration of a solution containing
2g of NaOH in 100cm^3 of solution?
[Na=23, O=16, H=1]

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

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

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

19 Which of the following properties is not peculiar
to matter?

20 Cast iron is used in making

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

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

23 Alkanols have the general molecular formula

24 Which of the following is not an alkali?

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

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

27 An example of an acidic oxide is

28 What volume of 0.5 MH 2 SO 4 will exactly
neutralize 20cm^3 of 0.1 MNaOH Solution?

29 Diamond cannot be used

30 Ethanol is soluble in water due to the presence of
a

31 The number of electronic shells contained in an
atom with electron configuration 1s^2  2s^2  2p^6  3s^2  3p^6  4s^2
is

32 The drying agent suitable for drying ammonia is

33 The arrangement of particles in crystal lattices can
be studied using

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

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

36 An example of a solid emulsion is

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

38 Calculate the volume in cm^3 of oxygen evolved at
s.t.p when a current of 5A is passed through acidified
water for 193s?
[F = 96500 C mol 1 . Molar volume of a gas at s.t.p =
22.4dm^3 ]

39 The gas that is used for the treatment of cancer is

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

41 MnO 4(aq) + Y 5Fe^2+ (aq) Mn^2+ (aq) + 5Fe^2+
(aq) + 4H 2 O (1)
In the equation above, Y is

42. The compound above exhibits

43 n monosaccharide p⇌Q polysaccharide -n water.
In the process above, P and Q respectively represent

44. The functional groups present in the compound
above are

45. In the diagram above, X is the

46. The diagram represents

47. The curve depicts titration between

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

49 CH 4(g) + CI 2(g) CH 2 CI (s) + HCI g
The major factor that influences the rate of the
reaction above is

50 N 2 O4(aq) ⇌ 2NO 2(g) △H = +ve
In the reaction above, an increase in temperature will