identify functional group and give one example- a) - O - ,b) - co -OR
Answers
Answer:
write the name of functional groups in HCHO, HCOOH and CH3COCH3. Methanal (HCHO) is from the aldehyde group. Methanol (HCOOH) is from the alcohol group
Topic -
=> The topic involved in this question is Organic Chemistry - Functional Groups.
Answers -
(a) -O-
=> Here, an Oxygen atom is visible and on both its sides two alkyl groups are attached .
=> Functional Group - "ether"
=> Example - Ethoxy ethane or diethyl ether .
=> Structure -
H2C-CH3-O-CH3-CH2
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(b) -C=O -
=> Here, an Oxygen atom is bonded to a Carbon atom by means of a double bond and on both sides of the carbon atom alkyl groups may be present.
=> A Carbonyl group is bonded to alkyl groups on both sides .
=> Functional Group - Ketone .
=> Example - Propan-2-one or Acetone .
=> Structure -
O
||
H3C-C-CH3
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(c) -COOR
=> Here, a Carbonyl group is bonded to an Oxygen atom which itself is bonded to an alkyl group -R .
=> This compound is a Carboxylic acid derivative as it was formed when the Hydrogen in Carboxyl (-COOH) group was replaced by an alkyl group R .
=> Functional Group - Ester .
=> Example - would be Ethyl ethanoate or Ethyl acetate which is commonly used as a solvent.
=> Structure -
O
||
H3C-C-O-CH2-CH3
More to know -
=> Esters have a slight fruity smell and are naturally present in different fruits such as banana, pear .
=> Esters are prepared by the esterification of Carboxylic acids with Alcohols in the presence of concentrated sulphuric acid.