Which of the following procedures is suitable for identifying the food colouring added to a pastry sample? Posted on:
Which of the following procedures is suitable for identifying the food colouring added to a pastry sample? Posted on:
Which of the following occurs when a solution of CuSO4 is electrolysed using copper electrodes? Posted on:
0.10 mol dm-3 NaCI conducts electricity better than 0.10 mol dm-3 CH3COOH because the solution of NaCI Posted on:
An iron nail placed in a solution copper (ll) tetraoxosulphate (VI) is soon covered with a deposit of copper which of the following equations represents the reactions ? Posted on:
A finely divided from of a metal burns more readily in air than the rod from because the rod has Posted on:
What is the effect of using vanadium (V) oxide as catalyst in the reactio n represented by the following equation? 2SO2 + O2 ⇌ 2SO3; ∆H = – xKJmol-1 Posted on:
What type of reaction is involved when wood shavings produce a brown gas with concentrated HNO3? Posted on:
