Question

which of the following represent butanoic acid ?​

Answer 1

$\huge\red\bigstar\underline{\underline{\fbox{\red{Answer }}}}$

Naturally in animal fat and milk, plant oils. It is present in the form of butyrates or butanoate as esters and salts. We already know that, Carbon has four valences, so it makes 4 bonds. And the Hydrogen atom has one valence only.

Answer 2

Answer:

naturally in animal fat , and milk plant and soil .