A visible change is observed when a strip of iron is plac...
A visible change is observed when a strip of iron is placed in an aqueous solution of
FeSO4
ZnSO4
CuSO4
MgSO4
Correct answer is C
No explanation has been provided for this answer.
What is the maximum number of electrons that can occupy the second energy level (n=2)? ...
Which of the following is not an acid anhydride?...
The product of the reaction between propanoic acid and ethanol is ...
Which of the following reactions is sulphur (IV) oxidizing agent? ...
The reaction of hydrochloric acid and calcium trioxocarbonate (IV) produces ...
The atomic number of chlorine is 17. What is the number of electrons in a chloride ion? ...