Question

Which is more acidic benzoic acid or formic acid?

Answer 1

Hint: We have to know that the $p{K_a}$ portrays the number of acidic particles a substance will deliver in an answer, or, for our situation, demonstrates the number of protons separate to shape hydronium particles. The lower the $p{K_a}$, the more grounded the corrosive. In this manner, $p{K_a}$ was acquainted as a file to express the causticity of feeble acids.

Complete answer:
We have to know that benzoic corrosiveness is a white strong. It is dismal. It is the least difficult sweet-smelling carboxylic corrosive. The name is derived from gum benzoin, which was for quite a while its solitary source. Benzoic corrosive is a significant antecedent for the modern combination of numerous other natural substances. The salts and esters of benzoic corrosives are known as benzoates. The $p{K_a}$ value of benzoic acid is $4.20$ .
We know that formic corrosive, methodically named methanoic corrosive, is the least complex carboxylic corrosive. It's anything but a significant middle of the road in compound blend and happens normally, most remarkably in certain insects. The $p{K_a}$ value of formic acid is $3.75$ .
Therefore, formic corrosive is more acidic than benzoic corrosive since it's anything but a lower $p{K_a}$ value. Formic corrosive doesn't have such a gathering of electron givers and is more grounded than acidic corrosive. Formic corrosive is additionally a more grounded corrosive than acidic corrosive. This methyl bunch is a gathering of electron contributors that can destabilize the form base's negative charge, which is the reason acidic corrosive is less acidic than formic corrosive.

Note:
 We know that the $p{K_a}$ esteem is one technique used to show the strength of a corrosive. $p{K_a}$ is the negative log of the corrosive separation steady or ${K_a}$ esteem. A lower $p{K_a}$ esteem shows a more grounded corrosiveness. That is, the lower esteem shows the corrosive all the more completely separates in water.