Q17 of 400 Page 167

Which inert gas electron configuration do the Cl atoms in Cl2 molecule resemble ? What is this electron configuration?

argon is the inert gas electron configuration do the Cl atoms in Cl2. Its electronic configuration is 2, 8, 8.

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14 What type of Bonds are present in methane (C) and sodium chloride (NaCl)? 15 State one major difference between covalent and ionic bonds and give one example each of covalent and ionic compounds. 18 Which of the following compounds are ionic and which are covalent?

Urea, Cane sugar, Hydrogen chloride, Sodium chloride, Ammonium chloride, Carbon tetrachloride, Ammonia, Alcohol, Magnesium chloride.

 19 Give one example each of the following:

(i) A molecule containing a single covalent bond


(ii) A molecule containing a double covalent bond


(iii) A molecule containing a triple covalent bond


(iv) A compound containing an ionic bond