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Out of the following, amphiprotic specie...

Out of the following, amphiprotic species are `I. HPO_(3)^(2-)` II. `OH^(-)` III. `H_(2)PO_(4)^(-)` IV. `HCO_(3)^(-)`

A

I,III,IV

B

I and III

C

III and IV

D

All of the above

Text Solution

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The correct Answer is:
C
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(i) State the formula and name the conjugate base of each of the following species : (a) H_(3)O^(+) (b) HSO_(4)^(-) (C ) NH_(4)^(+) (d) HF (e ) CH_(3)COOH (f) CH_(3)NH_(3)^(+) (g) H_(3)PO_(4)(h)H_(2)PO_(4)^(-). (ii) State the formula and name the conjugate acid of each of the following species : (a) OH^(-) (b) HPO_(4)^(2-) (C) H_(2)PO_(4)^(-) (d) CH_(3)NH_(2) (e) CO_(3)^(2-) (f) NH_(3)(g) CH_(3)COO^(-) (h) HS^(-)

The equilibrium constant for the given reaction is approximately 10^(-3) HPO_(4)^(2-)(aq) +HCO_(3)^(-) (aq)hArr H_(2)PO_(4)^(-) (aq) +CO_(3)^(2-)(aq) Which is strongest conjugate base in the given reaction?

How many of the following compounds have sp^(3) hybridisation (i) SO_(4)^(2-) (ii) SO_(5)^(2-) (iii) PO_(4)^(3-) (iv) PO_(5)^(3-) (v) I_(3)^(Theta) (iv) CO_(3)^(2-) (vii) CO_(4)^(2-) .

Which of the following is a Bronsted base ? (i) NH_(3) , (ii) CH_(3)NH_(2) (iii) HCO_(3)^(-) , (iv) SO_(4)^(2-)

Write equaitons to explain why the following species act as weak bases in water solution. i. CH_(3)NH_(2) ii. NO_(2)^(Θ) iii. HPO_(4)^(2-) iv. CHO_(2)^(Θ)

MOTION-IONIC EQUILIBRUIM-Exercise -2 (Level -1)
  1. The conjugate acid of NH2^- is

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  2. Out of the following, amphiprotic species are I. HPO(3)^(2-) II. OH^(-...

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  3. Ostwald’s dilution law gives satisfactory results for -

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  4. The first and second dissociation constant of an acid H(2)A are 1.0xx1...

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  5. pH of an aqueous solution of NaCl at 85^@C should be

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  6. If equilibrium constant of CH3COOH + H2O Leftrightarrow CH3COO^(-) + H...

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  7. 1 c.c. of 0.1N HCl is added to 99 CC solution of NaCl. The pH of the r...

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  8. 10 ml of M/(200) H(2)SO(4) is mixed with 40 ml of M/200 H(2)SO(4). The...

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  9. Which of the following solutions will have pH close to 1.0 ?

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  10. The pH of an aqueous solution of 0.1 M solution of a weak monoprotic a...

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  11. If pK(b) for fluoride ion at 25^(@)C is 10.83, the ionisation constant...

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  12. A solution with pH=2 is more acidic than one with a pH =6 , by a facto...

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  13. Determine degree of dissociation of 0.05M NH(3) at 25^(@)C in a soluti...

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  14. The compound whose 0.1 M solution is basic is

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  15. If K1 & K2 be first and second ionisation constant of H3PO4 and K1 gtg...

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  16. An aqueous solution contains 0.01 M RNH2 (Kb=2 xx 10^(-6)) & 10^(-4) M...

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  17. The degree of hydrolysis of a salt of weak acid and weak base in it's ...

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  18. What is the percentage hydrolysis of NaCN is N//80 soluiton, when the ...

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  19. The pK(a) of a weak acid, HA, is 4.80. The pK(b) of a weak base, BOH, ...

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  20. 1 M NaCl and 1 M HCl are present in an aqueous solution. The solution ...

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