Question

Which salt has a pH < 7?
KBr
HCOOK
CaSO4
NH4NO3

Answer 1

If a salt has a pH less than 7, then it is an acid. All acids start with a H in there formula. The only compound that starts with an H from the listed options is HCOOK.

So the salt HCOOK has a pH<7

Answer 2

Answer:

NH4NO3 is the right answer

Explanation:

answer is correct on edge

option B is incorrect