Question

acid that contains 1 hydrogen atom per molecule

Answer 1

hydrochloric acid hope it helps you

Answer 2

There is no such acid which does not contain hydrogen in its per molecule.

For example,

Hydrochloric acid = HCl

Hydrofluoric acid = HF

Nitric acid = HNO3

Nitrous acid = HNO2

Sodium hydroxide = NaOH

Potassium hydroxide = KOH

Sulphurous acid = H2SO3

Sulphuric acid = H2SO4

Carbonic acid = H2CO3

Oxalic acid = H2C2O4

Silicic acid = H2SiO3

Acetic acid = HC2H3O2

Hydroiodic acid = HI