1.-The total number of valence(bonding) electrons in amolecule acetone (CH 3 COC

Question

1.-The total number of valence(bonding) electrons in amolecule acetone (CH3COCH3) is: a) 6   b) 12 c) 18   d)24   e) 30 2.- Which of the following substances has an incomplete octetin the Lewis structure? a) CO2   b) Cl2 c)FCl   d) BI3   e)SO2 1.-The total number of valence(bonding) electrons in amolecule acetone (CH3COCH3) is: a) 6   b) 12 c) 18   d)24   e) 30 2.- Which of the following substances has an incomplete octetin the Lewis structure? a) CO2   b) Cl2 c)FCl   d) BI3   e)SO2

Explanation / Answer

1) (CH3COCH3) total valence electrons: carbon = 4 hydrogen = 1 oxygen = 6 so total carbon*3 + hydrogen * 3 + oxygen => 4*3 + 3*1 + 6 = 24 electrons so answer is d) 2)incomplete octet in the Lewis structure here in which electrons are not eight its octet is notsatisfied>> so , it is d)BI3

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