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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

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Solution

(a)
(i) Hydronium ion,




In this molecule Coordinate bond present.


(ii) Ammonium ion

Image result for 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



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