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Which of the following statement is corr...

Which of the following statement is correct?

A

The pH of ` 1.0 xx 10 ^(-8) ` M solution of HCl is 8

B

The conjugate base of ` H_2PO_4^(-) " is " H_3PO_4`

C

Autoprotolysis constant of water increases with temperature

D

When a solution of a weak monoprotic acid is titrated against a strong base, at half neutratlisation point, pH = `1//2 pK_a`

Text Solution

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The correct Answer is:
C
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ICSE-EQUILIBRIUM -OBJECTIVE (MULTIPLE CHOICE ) TYPE QUESTIONS
  1. The solubility of A2X3 is y mol dm^(-3) Its solubility product is

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  2. If pKb for fluoride ion at 25 ^(@) C is 10.83 the ionisation consta...

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  3. Which of the following statement is correct?

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  4. The pH of 0.1 M solution of the following salts increases in the orde...

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  5. A buffer solution cannot be prepared from a mixture of

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  6. For a sparingly soluble salt ApBq, the relationship of its solubility...

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  7. One of the following species acts as both Bronsted acid and base

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  8. An aqueous solution of 1M NaCl and 1M HCl is

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  9. pH of 0.005 M calcium acetate (pKa" of " CH3COOH= 4.74) is

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  10. The solubility in water of a sparingly soluble salt AB2 is 1.0 x...

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  11. Which one of the following statements is not true ?

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  12. The conjugate base of H(2)PO(4)^(-) is :

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  13. The molar solubility (in mol L^(-1) ) of a sparingly soluble salt MX4...

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  14. The solubility product of a salt having general formula MX2 in water ...

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  15. Hydrogen ion concentration in mol/ L in a solution of pH = 5.4 will b...

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  16. What is the conjugate base of OH^(-) ?

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  17. The pKa of a weak acid (HA) is 4.5 The pOH of an aqueous buffered so...

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  18. In a saturated solution of the sparingly soluble strong electrolyte A...

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  19. The first and second dissociation constant of an acid H2A are 1.0 ...

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  20. pK(a) of a weak acid (HA) and pK(b) of a weak base (BOH) are 3.2 and 3...

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