Question

(a) Draw an electron dot diagram to show the structure of each of the following :

(i) Hydronium ion, (ii) Ammonium ion,

(iii) Hydroxyl ion

State the type of bonding present in them.

(b) Give two examples in each case :

(i) Co-ordinate bonds compounds,

(ii) Solid covalent compounds,

(iii) Gaseous polar compounds,

(iv) Gaseous non polar compounds,

(v) Liquid non polar compounds

Answer 1

(a)
(i) Hydronium ion,




In this molecule Coordinate bond present.


(ii) Ammonium ion



coordinate bond



(iii) Hydroxyl ion


covalent bond



(b)

(i) Coordinate bond compounds: NH⁺₄, H₃O⁺

(ii)Solid covalent compounds: Diamond, Boron nitride, Silicon carbide

(iii)Gaseous polar compounds: H₂S, PH₃, NH₃

(iv) Gaseous non-polar compounds: Methane (CH₄), Ethylene (C₂H₄)

(v) Liquid non-polar compounds: Gasoline, Toluene