C c cccccccccccccccccccccccccccccc =)
It is Reactivity. <span>the state or power of being reactive or the degree to which a thing is reactive.</span>
Option B. carboxylic acid
For example
CH3 - COOH, is the acetic acid or etanoic acid.
where - COOH is C bonded with O (trhough doble bond) and with OH (with a single bond)
