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Which of the following pairs consitutes ...

Which of the following pairs consitutes buffer?

A

`HNO_2` and `NaNO_2`

B

NaOH and NaCl

C

`HNO_3` and `NH_4NO_3`

D

HCl and KCl

Text Solution

Verified by Experts

The correct Answer is:
A
An example of acidic buffer solution is a pair of `HNO_2` and `NaNO_2`. This pair constituents a buffer because `HNO_2` is weak acid and `NaNO_2` is a salt of weak acid `(HNO_2)` with strong base (NaOH).
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PHYSICS WALLAH-EQUILIBRIUM-NEET PAST 10 YEARS QUETSIONS
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  4. Which among the following salt solutions is basic in nature?

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  11. The solubility of BaSO(4) in water is 2.42xx10^(-3) gL^(-1) at 298 K. ...

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