LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

DIVERSITY AMONG LIFE FORMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which carbonyl group is found at the end of a carbon skeleton?
A
Ketone
B
Aldehyde
C
Alcohol
D
Carboxyl
Explanation: 

Detailed explanation-1: -This compound has the carbonyl group on an end carbon atom, so it is an aldehyde. This compound has the carbonyl group on an interior carbon atom, so it is a ketone. Both alkyl groups are propyl groups. The name is therefore dipropyl ketone.

Detailed explanation-2: -the carbonyl group is located within the carbon skeleton (meaning that the carbonyl carbon is bonded to two other carbons in addition to its double bond with oxygen). Sugars containing 1 ketone group: ketoses. Ex: ribose is an aldose, and ribulose is a ketose. ranges from 3-7.

Detailed explanation-3: -So, a ten-carbon chain containing a C=O. group at the end is called decanal. It is an aldehyde, because, being at the end of the chain, the carbonyl carbon is attached to one carbon and one hydrogen.

There is 1 question to complete.