Which of the following statements is false?

[monokekie]

Which of the following statements is false?
a Sodium reacts vigorously with water liberating hydrogen gas and forming sodium hydroxide.
B Iron dissolves in copper 2 sulfate solution liberating copper
c Lead dissolves in dilute sulfuric acid to produce a colourless solution.
D Zinc reacts with concentrated alkali solutions liberating hydrogen gas.

many thanks !

[d0minicz]

Hey i say C because lead sulfate is insoluble (prob not a valid reason??)

[monokekie]

arhh good point

but why is D correct though?

[chem-nerd]

alkalis release OH- when dissolved in water. Thus the redox reaction would be oxidation of Zn(s) to Zn(aq) and reduction of the alkali metal from (aq) to (s) so no hydrogen gas formed.

[monokekie]

alkalis release OH- when dissolved in water. Thus the redox reaction would be oxidation of Zn(s) to Zn(aq) and reduction of the alkali metal from (aq) to (s) so no hydrogen gas formed.

thanks, i get it now. didn't check this post recently sry bout the late reply