1991 - WAEC Chemistry Past Questions and Answers - page 4
31
An organic compound which reacts readily with bromine to form a compound with the formula CH3CHBrCH2Br is
A
ethene
B
propane
C
butane
D
propene
correct option: b
Users' Answers & Comments32
river contaminated by alkali waste will have a pH of about.
A
1
B
3
C
5
D
7
correct option: e
Users' Answers & Comments33
In solution, aminoethanoic acid (glycine) can be represented as NH+3 CH2COO. This implies that it
A
is soluble in all inorganic liquids
B
can function as a weak acid or a weak base
C
does not form salt with mineral acids
D
is highly acidic
correct option: b
Users' Answers & Comments34
Hydrogen is used for the following except
A
manufacturing of ammonia
B
synthesis of hydrochloric acid
C
extinguishing fire
D
conversion of coal to petrol
correct option: c
Users' Answers & Comments35
Which of the following is suitable for determining different isotopes present in an element which exhibits isotopy?
A
Sensitive weighing balance
B
Cathoda ray tube
C
Mass spectrometer
D
Geiger muller counter
correct option: c
Users' Answers & Comments