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.
What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen?
[H = 1, O = 16]
36.0g
8.0g
72.0g
16.0g
Correct answer is C
2H2 + O2 → 2H2O
4 → 36
8 → X
X → (8/6) * 36
= 72.0g
2 Y
2 Z
Z
Y
Correct answer is C
No explanation has been provided for this answer.
glucose and glucose
glucose and fructose
fructose and fructose
galactose and glucose
Correct answer is B
No explanation has been provided for this answer.
Alkanones are generally obtained by the oxidation of
primary alkanols
secondary alkanols
tertiary alkanols
alkanoic acid
Correct answer is B
No explanation has been provided for this answer.
The reaction of carbide with water gives
ethyne
ethene
ethane
ethanal
Correct answer is A
No explanation has been provided for this answer.