The graphical variation of molar conductivity ( ) against square root of molar concentration ( c ) of certain electrolyte 'X' is linear with intercept on y axis. Identify X from following.

Step-by-step solution

According to the Debye-Hückel-Onsager equation, the variation of molar conductivity _m with the square root of concentration c is given by _m = _m^ - A c . This linear relationship with a definite y-intercept ( _m^ ) is observed only for strong electrolytes. Weak electrolytes show a steep curve at low concentrations and do not have a linear plot or a well-defined intercept. Among the given options, CH ₃ COOH , NH ₄ OH , and HCOOH are weak electrolytes. CH ₃ COONa is a salt of a weak acid and a strong base, making i