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Which of the following combinations of s...

Which of the following combinations of solute would result in the formation of a buffer solution.
a. `CH_(3)COOH +NaOH` in
i. `1:1` mol ratio
ii. `2:1` mol ratio
iii. `1:2` mol ratio
b. `NH_(4)CI=NH_(3)`in
i. `1:1` mol ratio
ii. `2:1` mol ratio
iii. `1:2 `mol ratio
c. `HCI +NaCI`
d. `HCI +CH_(3)COOH`
e. `NaH +HCI`

A

`CH_(3)COOH and NaOH ` ia a 1:1 mole ratio

B

`CH_(3)COOH and Ca(OH)_(2) ` in a 2:1 mole ratio

C

`NH_(3) and H_(2)SO_(4)` in a 4 :1 mole ratio

D

`H_(2)SO_(4) and C_(6)H_(5)NH_(2)` in 1 : 3 mole ratio

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