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.
A white precipitate is formed
A green precipitate is formed
The mixture remains colourless
The mixture turns reddish brown
Correct answer is D
No explanation has been provided for this answer.
CO, CO2 and SO2
CO, HCL and SO2
CO, CO2 and HCL
SO2, CO2 and HCL
Correct answer is B
No explanation has been provided for this answer.
V2O5 < K2Cr2O7 < KMnO4
K2Cr2O7 < KMnO4 < V2O5
KMnO4 < K2Cr2O7 < V2O5
KMnO4 < V2O5 < K2Cr2O7
Correct answer is A
No explanation has been provided for this answer.
0.30 mol dm3
0.40 mol dm3
0.50 mol dm3
0.60 mol dm3
Correct answer is A
M1 V1 = M2 V2
∴ Mn Vn represent volume and molar concentration of HCL also MyVy represent volume and molar concentration of Na2CO3
MnVn = MyVy
0.25 * 15 = 12.50 * My
My = (0.25 * 15)/12.50
My = 0.3m/dm3
HF(g)
NH3(g)
CH4(g)
HCl(g)
Correct answer is A
No explanation has been provided for this answer.