Question
If ionic product of water is Kw = 10-6 at 4°C, then a solution with pH = 7.5 at 4°C will
(i) turns blue litmus red
(ii) turns red litmus blue
(ii) Be neutral to litmus
Joshi sir comment
question is not appropriate because for given Kw , [H+] will be 10-3 and max. pH will be 6 and the question is asking about a solution of pH 7.5 which is out of limit
but if it is considered as a correct question then answer will be (ii)
Read 1 Solution.
at 4 C temp for water ie neutral , pH is 6 thus if pH is greater than 6 will be basic ans will be 2 optn
SARIKA 11 year ago
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