In a voltaic cell based on the Cu-Zn reaction

Zn(s) + Cu2+ (aq) --> Cu(s) + Zn2+ (aq)
there is exactly 1 mole of each reactant and product. A second cell based on the Cd-Cu cell reaction
Cd(s) + Cu2+ (aq) --> Cu(s) + Cd2+ (aq)
also has exaclty 1 mole of each reactnat and product. Which of the following statements about the two cells is true?

A) The quantities of electrical energy that they can produce are the same
B) The masses of their elctrodes are the same
C) The quantities of electrical charge that are they can produce are the same
D) Their cell potentials are the same

The quantities of electrical charge that are they can produce are the same

Explanation:

The quantity of electrical charge produced by an electrochemical cell is given by

Number of moles of electrons × Faraday's constant.

since the number of moles of electrons involved in the two electrochemical reactions are the same (2 moles of electrons each) then the charge that they can produce will also be the same.

Hence the answer.

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.