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2g of NaOH per 250 mL of solution is add...

`2g` of `NaOH` per `250 mL` of solution is added to a buffer solution of buffer capacity `0.2`. Then the change in pH is

A

`0.5`

B

`1`

C

`1.5`

D

`2.0`

Text Solution

Verified by Experts

The correct Answer is:
B
Buffer capcity
`= ("No. of moles of an acid added per lit solution")/(P^(H) "change")`
`P^(H)` change `= ((8)/(40))/(0.2) = (0.2)/(0.2) = 1`
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