In the Lewis structure for ClO- (hypochlorite ion), how many bonding electron pairs are there between the C?

Question

one

two

three

four

Answer 1

Cl-O^-  only has one bond in the entire polyatomic ion.  Therefore there is only one pair of bonding electrons between Cl and O.  Here's a hint.  Halogens don't (as a general guideline) form multiple bonds.

Answer 2

There are 7 + 6 + 1 = 14 valence electrons total. The Lewis structure shows 8 around the Cl and 8 around the O, with the Cl and O sharing 1 pair of electrons.