Question

Name the functional groups present in the following compounds :

$\left(\mathrm{a}\right){\mathrm{CH}}_3{\mathrm{COCH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3\left(\mathrm{b}\right){\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{COOH}\left(\mathrm{c}\right){\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CHO}\left(\mathrm{d}\right){\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}$

Answer 1

The functional groups present in the given compounds :

${\mathrm{CH}}_3{\mathrm{COCH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3:$

• The given compound is named as Pentan-2-one.
• The function group present in the molecules is : Ketone.
• Generally the suffix used for Ketone, $(\mathrm{R}-(\mathrm{CO})-\mathrm{R}’)$is -one.

${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{COOH}:$

• The given compound is named as Butanoic acid.
• The function group present in the molecules is : Carboxylic acid.
• Generally the suffix used for Carboxylic Acid $(\mathrm{R}-\mathrm{COOH})$ is -oic acid.

${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CHO}:$

• The given compound is named as Pentan-1-al.
• The function group present in the molecules is :Aldehyde.
• Generally the suffix used for Aldehyde $(\mathrm{R}-\mathrm{CHO})$ is -al.

${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}:$

• The given compound is named as Ethan-1-ol.
• The function group present in the molecules is : Alcohol.
• Generally the suffix used for Alcohol, $(\mathrm{R}-\mathrm{OH})$ is -ol.