1991 - JAMB Chemistry Past Questions and Answers - page 5
41
A certain liquid has a high boiling point. It is viscous, non-toxic, miscible with water being very hygroscopic. This liquid is most likely to be?
A
CH3CH2CH2HO
B
CH3CHOHCH3
C
CH3CH2CHOHCH3
D
CH2OHCHOHCH2OH
correct option: d
Users' Answers & Comments42
CH3-CH-CH3
CH2CI
Is known as?
CH2CI
Is known as?
A
1-chloro-2-methylbutane
B
1-chloro-2-methylpropane
C
2-chloromethylpropane
D
1-chloro-2, 2-dimethylethane
correct option: b
Users' Answers & Comments43
Which of the following statements is TRUE of the complete hydrolysis of a glycerine by sodium hygroxide?
A
3 moles ofNaOH are required for each mole of glyceride
B
3 moles of glycerol are produced
C
Only one mole of soap is formed
D
concentrated H2SO4 is essential for the completion of the reaction
correct option: a
Users' Answers & Comments44
Which of the following are the products of the reaction between CH3COOH and CI2 in sunlight?
A
CICH2COOH + HCI
B
CH3COCI + HOCI
C
CH3COOCI + HCI
D
CH3COCI + HO2
correct option: a
Users' Answers & Comments45
Which of these is an acid salt?
A
K2SO4-.AI2(SO4)3.24H2O
B
CuCO3.Cu(OH)2
C
NaHS
D
CaOCI2-
correct option: c
Users' Answers & Comments46
A
ionic
B
convalent
C
dative
D
metallic
correct option: b
Users' Answers & Comments47
A
Sulphur (IV) oxide and hydrogen chloride.
B
Carbon (IV) oxide and ammonia
C
Ammonia and hydrogen chloride
D
Carbon (IV) oxide and Sulphur (IV) oxide
correct option: c
Users' Answers & Comments48
A
two
B
three
C
four
D
five
correct option: c
3.0 x 10-5 x 4 = 1.2 x 10-4
.: The rate increase by a factor of 4
Users' Answers & Comments.: The rate increase by a factor of 4
49
A
litmus psper
B
potassium heptaoxodichromate (IV) paper
C
lead (ll) trioxonitrate (V) paper
D
universal indicator paper
correct option: c
Users' Answers & Comments