2016 - JAMB Chemistry Past Questions and Answers - page 3
21
The metal whose ore can be concentrated by passing it through a magnetic separator is
A
Zn
B
Sn
C
Cn
D
Ca
correct option: b
Users' Answers & Comments23
What volume of 0.5 MH2SO4 will exactly neutralize 20cm3 of 0.1 MNaOH Solution?
A
2.0cm 3
B
5.0cm 3
C
6.8cm 3
D
8.3cm 3
correct option: a
Users' Answers & Comments24
Diamond cannot be used
A
In making bicycle chains
B
As abrasives
C
In cutting glass and metals
D
As dies for drawing wires
correct option: a
Users' Answers & Comments25
Ethanol is soluble in water due to the presence of a
A
Carbonyl group
B
Hydroxyl groupd
C
Phenyl group
D
Methyl group
correct option: b
Users' Answers & Comments26
The number of electronic shells contained in an atom with electron configuration 1s22s22p63s23p64s2 is
A
3
B
2
C
4
D
5
correct option: c
Users' Answers & Comments27
The drying agent suitable for drying ammonia is
A
Calcium Chloride
B
Calcium Oxide
C
Phosphorus(V) Oxide
D
Concentrated H2SO4
correct option: b
Users' Answers & Comments28
The arrangement of particles in crystal lattices can be studied using
A
X-rays
B
\(\beta\)-rays
C
\(\alpha\)-rays
D
\(\gamma\)-rays
correct option: a
Users' Answers & Comments29
In the extraction of iron, the waste gas from the furnace is a mixture of
A
PH3 CO and CO2
B
CO and C
C
N2 CO and CO2
D
PH3 and CO
correct option: a
Users' Answers & Comments30
In a neutralization reaction involving HCI and NaOH using litmus as indicator, the colour at the end point is
A
Blue
B
Red
C
Orange
D
Purple
correct option: c
Users' Answers & Comments