What is the conjugate base of CH4?

Answer 1

The conjugate base of methane (CH4) is the methyl carbanion (CH3-). Because methane is an extremely weak acid, the methyl carbanion is an EXTREMELY STRONG BASE.

Compounds like methyl lithium (CH3Li) are, in fact, considered organometallic superbases and will violently deprotonate even the weakest acids (such as water and ammonia).

Answer 2

The conjugate base of CH4 is CH4-. It is formed by removing a proton from CH4, resulting in a negatively charged species.