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A solution contains equimolar concentrat...

A solution contains equimolar concentration of a weak acid HA and its conjugate base `A^(-) , p K_(b)` of `A^(-)` is 9 . The pH of the solution is

A

methyl orange (3 to 4)

B

methyl red ( 5 to 6)

C

bromothymol blue ( 6 to 7.5 )

D

phenolphthalein (8 to 9.)

Text Solution

Verified by Experts

The correct Answer is:
D
pH range of end point of titration between W.A and `S . B gt 7`
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AAKASH SERIES-IONIC EQUILIBRIUM -ADDITIONAL PRACTICE EXERCISE (LEVEL -I (MAIN) (Straight Objective Type Questions))
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  2. Which of the following solution will have pH closer to 1.0 ?

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  3. Which one is the most acidic compound ?

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  4. A weak acid HX has the dissociation constant 1xx 10 ^(-5) M.It forms...

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  5. Solubility products constants (K(sp)) of salts of types MX, MX2,M3X ...

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  6. H2 O+ H3 PO3 hArr H3O^(+) +H2O PO3^(-) ,pK1 = x H2O +H2PO3 hArr ...

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  7. Jagadeesh: How can we predict the nature of a salt, sodium acetate (CH...

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  8. M(OH)x " has " a K(sp) " of " 4 xx 10 ^(-9) and its solubility is ...

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  9. Solubility of Hg2Cl2 in a solvent is S moles/ litre.Its solubility pro...

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  10. A sample of hard water contains 0.005 moles of calcium chloride per li...

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  11. The pK(al) and pK(a2) of an amino acid are 2.3 and 9.7 respectively. ...

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  12. The best indicator for detection of end point in litration of a weak a...

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  13. Which of the following solution will have pH closer to 1.0 ?

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  14. Which one is the more acidic in aqueous solution ?

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  15. A weak acid HX has the dissociation constant 1xx 10 ^(-5) M.It forms...

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  16. Solubility products constants (K(sp)) of salts of types MX, MX2,M3X ...

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  17. H3PO4 +H2O hArr H3O^(+) +H2PO4^(-) ,pK1 =2.15 , H2PO4^(-) +H2O hArr...

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  18. Consider the three solutions of 1 M concetration (1) Sodium acetate ...

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  19. M(OH)x " has " a K(sp) " of " 4 xx 10 ^(-9) and its solubility is ...

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  20. Solubility of Hg2Cl2 in a solvent is S moles/ litre.Its solubility pro...

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