What happens when zinc rod is immersed in copper (II) tetraoxosulphate (VI) solution/
The blue colour of the solution disappears
Electrons flow from copper to zinc
The zinc rod remain undissolved
The copper generate more copper ions
Correct answer is A
No explanation has been provided for this answer.
The reaction that takes place in Daniell cell is
direct combination
redox
double decomposition
neutralization
Correct answer is B
No explanation has been provided for this answer.
slow downthe reverse reaction
have no effect on the reaction
favour the reverse reaction
favour the forward reaction
Correct answer is C
No explanation has been provided for this answer.
oxygen and leaving behind aqueous hydrochloric acid
chlorine and oxygen
oxygen, hydrogen and chlorine
oxygen, thereby producing hypochlorous acid
Correct answer is A
No explanation has been provided for this answer.
Which of the following sets of metals dissolves in dilute HCl?
Fe, Sn and Cu
Mg, Fe and Cu
Mg, Sn and Fe
Cu, Mg and Sn
Correct answer is C
No explanation has been provided for this answer.