Which of the following is weak electrolyte in solution

-H2S
-H2SO4
-HI
- HNO3
- HCI

1 answer

Certain acids are considered to be strong, which means they are dissociated 100% in solution. HCl hydrochloric acid
HNO3 nitric acid
H2SO4 sulfuric acid
HBr hydrobromic acid
HI hydroiodic acid
HClO4 perchloric acid

You ought to memorize this list, because almost every other acid is weak. The most common example used by teachers is HCl. Watch out for a teacher who tries to trip you up by using another strong acid on the test while having used HCl all the time in class.