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Q.

Let  Kw at 1000C be 5.5 × 10-13 M2. If an aqueous solution at this temperature has  pH = 6.2 .  Its nature will be

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a

acidic

b

neutral

c

alkaline

d

can't say

answer is B.

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Detailed Solution

Pkw=-log(5.5×10-13)

PKw = 12.26

∴    Condition of neutrality pH = 6.13

Thus, pH = 6.2 > 6.13

Means alkaline

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Let  Kw at 1000C be 5.5 × 10-13 M2. If an aqueous solution at this temperature has  pH = 6.2 .  Its nature will be