432g
108g
54g
27g
Correct answer is D
Ag + e → Ag
1 mole of Ag+ = 108
i.e 108 X 1 X 96500
But, 24,125C will produce ( 108 X 24,125 ) / ( 1 X 96500 )
Ag = 27g
What quantity of electrons is lost when one mole of iron (II) ions is oxidized to iron (III) ?
0 mole
3 moles
I mole
2 moles
Correct answer is B
Fe\(^2^+\) → Fe\(^3^+\)
The pale green Fe2+ is oxidized to orange Fe3+ because it loses an electron.
I only
I and II only
I and III only
II and III only
Correct answer is C
Incomplete combustion occurs when the supply of air or oxygen is poor. Water is still produced, but carbon monoxide and carbon are produced instead of carbon dioxide. The carbon is released as soot.
Which or the following substances is a polypeptide?
Starch
Glycogen
Protein
Fats
Correct answer is C
- A polypeptide is defined as a polymer of amino acids joined together by peptide bonds.
- Proteins are polymers of amino acids.
The IUPAC name of the compound represented by the structure below is ?
2- chloro but-I ,3-diene.
But-1,3-chlorodiene.
2-chloro but-diene.
3 -chloro but -1.3-diene.
Correct answer is A
No explanation has been provided for this answer.
WAEC Subjects
Aptitude Tests