Chemistry
Describe briefly the ionic concept of oxidation and reduction. Give an equation to illustrate.
Related Questions
State, giving reasons, whether the substances printed in bold letters have been oxidised or reduced.
(a) PbO + CO ⟶ Pb + CO2
(b) Mg + 2HCl ⟶ MgCl2 + H2
(c) H2S + Cl2 ⟶ 2HCl + S
(d) Cl2 + H2S ⟶ 2HCl + S
Is it essential that oxidation and reduction must occur side by side in a chemical reaction? Explain.
State the similarities of hydrogen with group 1 elements and group 17 elements.
Which is the most preferred metal for the laboratory preparation of hydrogen. Why is any other metal not used?