To a solution of an unknown compound, a little dilute tet...
To a solution of an unknown compound, a little dilute tetraoxosulphate (VI) acid was added with some freshly prepared iron (II) tetraoxosulphate (VI) solution. The brown ring observed after the addition of a stream of concentrated tetraoxosulphate (VI) acid confirmed the presence of?
CO2−3
Cl-
SO2−3
NO2−3
Correct answer is D
NO−3 is confirmed, then the brown ring is due to the formation of FESO4.NO
3Cl2 + 2NH3 → N2 + 6HCl. In the above reaction, ammonia acts as...
What current in amperes will deposit 2.7g of aluminium in 2 hours? [Al = 27, F = 96 500 C mol-1]...
Mg2+(aq) + 2e->(aq) → Mg(s)E°(volts) = 2.370 Zn2+(aq) + 2e->(aq) → Zn(s)E°(volts) = -0.763 ...