ICSE 2006 : SCIENCE Paper 2 (Chemistry) - Question 2(b) Answer the following.

SCIENCE
Paper 2 (Chemistry) - 2006
(One hour and a half)

Question 2
(b)

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41.
(i) What is a lone pair of electrons?

42.
(ii) Draw an electron dot diagram of a hydronium ion and label the lone pair of electrons.

43.
(iii) Name a neutral covalent molecule which contains one lone pair of electrons.

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