2016 - JAMB Chemistry Past Questions and Answers - page 5
41
The diagram represents
A
A spontaneous reaction
B
An exothermic reaction
C
A non-spontaneous
D
An endothermic reaction
correct option: c
Users' Answers & Comments42
The curve depicts titration between
A
Strong acid and strong base
B
Strong acid and weak base
C
Weak acid and weak base
D
Weak acid and strong base
correct option: c
Users' Answers & Comments43
From the diagram above, an ideal gas can be represented by
A
K
B
M
C
L
D
N
correct option: c
Users' Answers & Comments44
CH4(g) + CI2(g) \(\to\) CH2CI(s) + HCIg
The major factor that influences the rate of the reaction above is
The major factor that influences the rate of the reaction above is
A
Concentration
B
Catalyst
C
Temperature
D
Light
correct option: d
Users' Answers & Comments45
N2O4(aq) \(\rightleftharpoons\) 2NO2(g) \(\bigtriangleup\)H = +ve
In the reaction above, an increase in temperature will
In the reaction above, an increase in temperature will
A
Increase the reactant production
B
Increase the value of the equilibrium constant
C
Shift the equilibrium to the left
D
Decrease the value of the equilibrium constant
correct option: b
Users' Answers & Comments46
In an electrochemical cell, polarization is caused by
A
Oxygen
B
Hydrogen
C
Tetraoxosulphate(IV) acid
D
Chlorine
correct option: b
Users' Answers & Comments47
The condition required for corrosion to take place is the presence of
A
Oxygen and Carbon (IV) oxide
B
Water and Oxygen
C
Water and Carbon (IV) oxide and Oxygen
D
Water and Carbon (IV) oxide
correct option: b
Users' Answers & Comments48
The enzyme used in the hydrolysis of starch to dextrin and maltose is
A
Zymase
B
Sucrase
C
Amylase
D
Lactase
correct option: c
Users' Answers & Comments49
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
A
Concentrated tetraoxosulphate (VI) acid
B
Anhydrous calcium chloride
C
Calcium oxide
D
Sodium hydroxide
correct option: a
Users' Answers & Comments50
The monomer of nylon is
A
Hydroxybenzene
B
Hexanedioic acid
C
Benzene -1,-4-dicarboxylic acid
D
Ethane-1,2-diol
correct option: b
Users' Answers & Comments