Give examples of the following:a. Positive radicalsb. Basic radicalsc.

1.	Give examples of the following:a. Positive radicalsb. Basic radicalsc. Composite radicalsd. Metals with variable valencye. Bivalent acidic radicalsf. Trivalent basic radicals
Answer» a. Na⁺ – Sodium ion, K⁺ – Potassium ion b. Na⁺ – Sodium ion, K⁺ – Potassium ion, Ag⁺ – Silver ion c. \(SO_4^{2-}, NH_4^{+}\) (a) Iron (Ferrum) (i) Fe²⁺ – Ferrous [Iron – II] (ii) Fe³⁺ – Ferric [Iron – III] (b) Copper (Cuprum) (i) Cu⁺ – Cuprous [Copper -1] (ii) Cu²⁺ – Cupric [Copper – II] (c) Mercury (Hydragyrum) (i) Hg⁺ – Mercurous [Mercury -1] (ii) Hg²⁺ – Mercuric [Mercury – II] e. O^2- – Oxide, S^2- – Sulphide,\(CO_3^{2-}\) – Carbonate f. Al³⁺ – Aluminium, Cr³⁺ – Chromium, Fe³⁺ – Ferric.

Give examples of the following:a. Positive radicalsb. Basic radicalsc. Composite radicalsd. Metals with variable valencye. Bivalent acidic radicalsf. Trivalent basic radicals

Answer»

a. Na⁺ – Sodium ion, K⁺ – Potassium ion

b. Na⁺ – Sodium ion, K⁺ – Potassium ion, Ag⁺ – Silver ion

c. \(SO_4^{2-}, NH_4^{+}\)

(a) Iron (Ferrum)

(i) Fe²⁺ – Ferrous [Iron – II]

(ii) Fe³⁺ – Ferric [Iron – III]

(b) Copper (Cuprum)

(i) Cu⁺ – Cuprous [Copper -1]

(ii) Cu²⁺ – Cupric [Copper – II]

(i) Hg⁺ – Mercurous [Mercury -1]

(ii) Hg²⁺ – Mercuric [Mercury – II]

e. O^2- – Oxide, S^2- – Sulphide,\(CO_3^{2-}\) – Carbonate

f. Al³⁺ – Aluminium, Cr³⁺ – Chromium, Fe³⁺ – Ferric.