Which of the following statements is not true about aldehydes and ketones? Ketones have 2 R groups attached to the carbonyl carbon and are named with an 'one' ending. Aldehydes have 1 H attached to the carbonyl group and are named by attaching an -al suffix to the parent name. Carbonyl groups are considered to be non polar and water soluble. O Aldehydes and ketones contain the carbonyl group, -C=0