When water was added to a white anhydrous substance X, th...
When water was added to a white anhydrous substance X, the colour changed to blue. X is
CuSO4
FeSO4
Na2SO4
PbSO4
Correct answer is A
When water is added to white coloured anhydrous copper sulphate, its colour changes to blue, indicating that the blue coloured copper sulphate pentahydrate is regenerated.
Catalytic hydrogenation of oils results in the production of ...
The metal used to recover copper from a solution of copper sulphate is ...
The pair of organic compounds that are isomers is ...
A solid that absorbs water from he atmosphere and forms an aqueous solution is? ...
What change will occur during the electrolysis of brine using carbon electrodes? ...
Which of the following compounds is formed by the oxidation of ethanol? ...