Question

Acetate ion have:

• A. two carbon, oxygen double bond
• B. two carbon, oxygen single bond
• C. one carbon, oxygen single bond and on carbon, oxygen double bond
• D. none of the above

Answer 1

Answer: (C)

Draw line structure of acetate ion to find correct answer.
$C{H}_3-\stackrel{\underset{||}{O}}{C}-O^{-}$
$\therefore$ Acetate ion has one carbon, oxygen single bond and one carbon and oxygen double bond.