Question

The bio diesel is the long chain of carbon atoms contains _________ group at one end.

(a) Alcohol

(b) Aldehyde

(c) Ketone

(d) Ester

I got this question in unit test.

Enquiry is from Biomass and Biofuel topic in section Non Conventional Energy Sources and Storage Devices of Applied Chemistry

Answer 1

Right choice is (d) Ester

For explanation: The bio diesel contains long chain of carbon atoms that having an ester group on one end. Its structure is CH3—CH2—CH2—CH2—CH2—CH2—CH2—CH2—CH2—CH2—CH2—CH2—CH2—CH2—CH2—COOCH3.