pH scale is used to determine how acidic a solution is.
if pH value is less than 7 then solution is acidic
if pH = 7 then solution is neutral
and if pH is greater than 7 then solution is basic
pH of solution is 6.24
so if we take pH values from 1 to 7, with 1 being very acidic and 7 being neutral, pH value 6.24 lies within this range being closer to 7, the neutral value
this means that solution is slightly acidic.
answer is D. it is slightly acidic
