The solution with the lowest pH value is
5 ml of (m/10) HCL
10 ml of (m/10) HCL
15 ml of (m/5) HCL
20 ml of (m/8) HCL
Correct answer is A
No explanation has been provided for this answer.
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