Chemistry
Answer
In the formation of electrovalent compounds, the transfer of electrons is involved. The electropositive atom loses electrons and undergoes oxidation while the electronegative atom gains electrons and undergoes reduction. Hence, formation of electrovalent compound is a redox reaction.
Related Questions
What do you understand by redox reactions ?
Explain oxidation and reduction in terms of loss or gain of electrons.
Divide the following redox reactions into oxidation and reduction half reactions.
(i) Zn + Pb2+ ⟶ Zn2+ + Pb
(ii) Zn + Cu2+ ⟶ Zn2+ + Cu
(iii) Cl2 + 2Br- ⟶ Br2 + 2Cl-
(iv) Sn2+ + 2Hg2+ ⟶ Sn4+ + Hg22+
(v) 2Cu+ ⟶ Cu + Cu2+
Potassium (at No. 19) and chlorine (at No.17) react to form a compound. Explain on the basis of electronic concept :
(i) oxidation
(ii) reduction
(iii) oxidising agent
(iv) reducing agent.