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Which of the following is/are buffer sol...

Which of the following is/are buffer solution(s) ?

A

`10mL 0.1M HCI+20mL 0.1M NaCN`

B

`10mL 0.1M NaOH+20mL 0.1M NH_(4)CN`

C

`10mL 0.1M NH_(4)OH+20mL 0.1M CH_(3)COONH_(4)`

D

`10mL 0.1M CH_(3)CH_(3)COOH+20mL 0.1M CH_(3)COONH_(4)`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
`{:(HCI+,NaCNrarr,NaCI+,HCN),(10xx0.1,2xx0.1,0,0),(=1,=2,1,1),(0,1, ,):}`
`[HCN]=(1)/(30)and [NaCN]=(1)/(30)`
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