Answer
a) Ba(NO₃)₂ : a strong electrolyte
b) Ne : a non-electrolyte
c) NH₃ : a weak electrolyte
d) NaOH : a strong electrolyte
Work Step by Step
a) Ba(NO₃)₂ : It dissociates completely when dissolves in water, so it is a strong electrolyte
b) Ne : It is a noble gas and cannot be ionized, so it is a non-electrolyte
c) NH₃ : It is a weak base and dissociates partially in water, so it is a weak electrolyte
d) NaOH : It is a strong base and dissociates completely in water, so it is a strong electrolyte