Which molecule will form a solution with a very low ph?

h3po4
h2o
naoh
koh

Option (a) is the correct answer.

Explanation:

A solution which has more number of hydrogen ions will be acidic in nature and its pH will be less than 7. Whereas a solution which has more number of hydroxide ions will be basic in nature and thus, its pH will be greater than 7.

Also,        pH =

Therefore, a low pH means pH will be very less than 7.

The given molecules will dissociate as follows.

being a neutral molecule will not dissociate and pH of water is 7. Hence, it is a neutral molecule.

So, we can see that gives maximum number of hydrogen ions. Therefore, we can conclude that molecule of will form a solution with a very low pH.

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