Question

The conjugate base of NH₂⁻ is
a. NH₃ b. NH⁻² c. NH₃⁺ d. NH⁻³​

Answer 1

Answer:

Bronsted-lowry theory is basically an acid base reaction theory which has given a fundamental concept that when a base reacts with an acid , the acid forms its conjugate base and the base forms its conjugate acid.

In this theory, they have defined acids and bases by the way they react with each other. Their definitions were expressed in terms of equilibrium expression.

HA+B⇌A−+HB+

HA+B⇌A−+HB+

Where, HAHA is an acid and A−A− is conjugate base

BB is the base HB+HB+ is a conjugate acid.

In this reaction, an acid loses its electron to become its conjugate base and the base accepts the electron to become its conjugate acid.

NH2−+H+→NH3NH2−+H+→NH3

Where, NH2−NH2− is a base, H+H+ is a proton and NH3NH3 is a conjugate acid.

Here, the base that is NH2−NH2− accepts a proton that gives conjugate acid that is NH3NH3 .

So, the correct answer is Option A .