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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On January 7, 2015 Garmin announced the new 2015 Garmin nuvi GPS essential series. It comprising models of 57/58 model variants and 67/68 model variants. The new feature introduced by Garmin in this 2015 Garmin nuvi Essential Series is the compatibility to add a backup camera (BC 30 wireless backup camera â sold separately).