Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.
The compounds CH3CH2CHO and CH3COCH3 can be distinguished from each other using
Dilute ammonia
Benedict's solution
Tollen's reagent
Sodium hydroxide solution
Correct answer is C
No explanation has been provided for this answer.
The colour of litmus in an alkaline medium is
Red
Yellow
Pink
Blue
Correct answer is D
No explanation has been provided for this answer.
The relative atomic mass of a naturally occurring lithium consisting of 90%73Li and 10%63Li is
6.2
6.8
7.1
6.9
Correct answer is D
(90100 x 7) + (10100 x 6)
= 6.3 + 0.6 = 6.9
The industrial preparation of hydrogen gas from water gas is referred to as
Bosch process
Contact process
Haber process
Bayer Process
Correct answer is A
No explanation has been provided for this answer.
Ammonium chloride can be separated from its mixture with common salt by
Distillation
Evaporation
Decantation
Sublimation
Correct answer is D
No explanation has been provided for this answer.