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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The external Traffic antenna will work with the traffic receiver included with the nuvi series (1490LMT). Back To Top. Disclaimer: Information provided is believed correct and true, however, GPS City is not responsible for typographical errors or incorrect data.ive the unit at least 20 minutes while plugged into the traffic receiver (power cable) in the car. If no icon then try the update again and if that does not work please contact Garmin via phone @ 1-800-800-1020.