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.
ethanal
ethanoic acid
ethane
ethene
Correct answer is D
No explanation has been provided for this answer.
Which of the following compounds would not give a precipitate with ammoniacal AgNO3 solution?
CH3 C≡CCH3
HC≡CH
CH3C≡CH
CH3CH2C≡CH
Correct answer is A
Only terminal alkyne(simply, the alkyne in which the triple bonded carbon atoms are at the extreme positions.) reacts with ammonical AgNO3 and gives a white precipitate,
therefore, the correct option is A (Non-Terminal Alkyne has a triple bond at any place other than the end positions).
A mixture of kerosene and diesel oil can be separated by
crystallization
distillation
precipitation
sublimation
Correct answer is B
No explanation has been provided for this answer.
4800C
3840C
1920C
32C
Correct answer is C
No explanation has been provided for this answer.
Oxidation takes place at the anode during electrolysis because the anode
is deficient in electrons
is deficient in protons
has excess electrons
has attraction for positive ions
Correct answer is C
No explanation has been provided for this answer.