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.
Zn(s) + CuSO4(aq) \( \to \) ZnSO4(aq) + Cu(s)
In the reaction above, the oxidizing agent is
CuSO4(aq)
ZnSO4(aq)
Cu(s)
Zn(s)
Correct answer is A
No explanation has been provided for this answer.
The radioactive emission with the least ionization power is
\( \alpha - particles \)
X-rays
\( \gamma -rays \)
\( \beta - rays \)
Correct answer is C
No explanation has been provided for this answer.
How many unpaired electron are in the p-orbitals of a fluorine atom?
3
0
1
2
Correct answer is C
No explanation has been provided for this answer.
The following equations represent redox reactions EXCEPT
Ba2+(aq) + SO2-4 (aq) → BaSO4(s)
Cl2(g) + 2Br- (aq) → 2CI - (aq) + Br2(g)
Fe2+(aq) + ½ C I2(aq) → Fe3+ (aq) + CI-(aq)
2Fe3+(aq) + Sn2+(aq) → 2Fe2+(aq) Sn4+ (aq)
Zn(s) + CU2+(aq) → Zn2+(aq) + CU(s)
Correct answer is A
No explanation has been provided for this answer.
0.28
0.56
2.24
5.6
11.2
Correct answer is B
No explanation has been provided for this answer.