An aldehyde differs from a ketone because of its hydrogen atom attached to its carbonyl group, making aldehydes easier to oxidize. Ketones don't have a hydrogen atom bonded to the carbonyl group, and are more resistant to oxidation.
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Published 6:30 am, Thursday, February 19, 2009. Australian singer and voice-over artist Karen Jacobsen is Garminâs GPS voice. Australian singer and voice-over artist Karen Jacobsen is Garminâs GPS voice. Meet the voice of GPS â and she's good with directions. Back to Gallery.