At 298 K, a certain buffer solution contains equal concentrations of X- and HX, Kb for X- is 10-10.
What is the pH of this buffer solution ?
1. 2
2. 10
3. 4
4. 6
Subtopic:  pH calculation | Buffer |
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NEET - 2026
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Which combination of the following substances will result in the formation of an acidic buffer when mixed?
1. Weak acid and it's salt with a strong base.
2. Equal volumes of equimolar solutions of weak acid and weak base.
3. Strong acid and its salt with a strong base.
4. Strong acid and its salt with a weak base.
(The pKa of acid = pKb of the base)
Subtopic:  Buffer |
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Level 2: 60%+
NEET - 2023
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Which composition will make the basic buffer?

1. 100 mL of 0.1 M HCl+100 mL of 0.1 M NaOH
2. 50 mL of 0.1 M NaOH+25 mL of 0.1 M CH3COOH
3. 100 mL of 0.1 M CH3COOH+100 mL of 0.1 M NaOH
4. 100 mL of 0.1 M HCl+200 mL of 0.1 M NH4OH
Subtopic:  Buffer |
 66%
Level 2: 60%+
NEET - 2019
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