1992 - JAMB Chemistry Past Questions and Answers - page 4
31
The gas formed when ammonium trioxonitrate (V) is heated with sodium hydroxide is?
A
hydrogen
B
nitrogen (IV) oxide
C
oxygen
D
ammonium
correct option: d
Users' Answers & Comments32
The gas formed when ammonium trioxonitrate (V) is heated with sodium hydroxide is?
A
hydrogen
B
nitrogen (IV) oxide
C
oxygen
D
ammonium
correct option: d
Users' Answers & Comments33
Safety matches contain sulphur and?
A
potassium trioxochlorate (V)
B
potassium trioxonitrate (V)
C
charcoal
D
phosphorus sulphide
correct option: d
Users' Answers & Comments34
Addition of an aqueous solution of a salt gives a white precipitate. The salt is likely to be a?
A
nitrate
B
carbonate
C
chloride
D
sulphide
correct option: b
Users' Answers & Comments35
Sodium hydroxide solution can be conveniently stored in a container made of?
A
lead
B
zinc
C
aluminium
D
copper
correct option: d
Users' Answers & Comments36
Which of the following is NOT used as a raw material in the Solvay process?
A
Ammonia
B
Sodium chloride
C
Calcium trioxocarbonate (IV)
D
Sodium trioxocarbonate (IV)
correct option: d
Users' Answers & Comments37
Duralumin consists of aluminium, copper, ?
A
zinc and gold
B
lead and maganese
C
nickle and silver
D
manganese and magnesium
correct option: d
Users' Answers & Comments38
CaOs + H2O(l) → Ca(OH)2(s) ΔH -65 kj. The process represented by the above equation is known as?
A
dissolution
B
slaking
C
liming
D
mortaring
correct option: b
Users' Answers & Comments39
The carbon atoms in ethene are?
A
sp3 hybridized
B
sp hybridized
C
sp2 hybridized
D
not hybridized
correct option: c
Users' Answers & Comments40
Which of the following compounds reacts with sodium metal as well as silver and copper salts ?
A
CH3C Ξ C—CH3
B
CH3CH2CH2
C
[]
D
[]
correct option: c
Users' Answers & Comments