Is HF a strong electrolyte a weak electrolyte or non-electrolyte?

Weak electrolyte because it is a weak acid

In water acetic acid is a weak electrolyte because at normal temperature it only dissociate 5%.

SO2 is non electrolyte

weak electrolyte

A strong electrolyte dissociates (splits up) into its respective ions to a great extent in water. A weak electrolyte will dissociate very little in water.