Question

Two elements A and B reacts to form a compound. During the reaction, A loses three electrons and B accepts two electrons.
(i) Write the formula of the compound.
(ii) Will this compound conduct electricity in liquid form? Explain
​

Answer 1

(i) Formula of given Compound is A₂B₃

Explanation (i) : Since A loses 3 electrons its oxidation number is +3; & since B accepts 2 electrons its oxidation number is -2. So the compound's formula becomes A₂B₃ (by cross multiplication of respective oxidation numbers or valencies).

(ii) This compound will conduct electricity in liquid form.

Explanation (ii) : Since it is formed by ionic / electrovalent bonds (by loss and gain of electrons) it forms ionic compound that will conduct electricity in fused / molten state or liquid form.