02. Acid, Bases and Salts
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Ionic Equilibrium

229519 Match List-I with List-II
| List-I (Oxide) | List-II (Nature) |
|---------------------|--------------------|
| (A) \( \text{Cl}_2 \text{O}_7 \) | (I) Amphoteric |
| (B) \( \text{Na}_2 \text{O} \) | (II) Basic |
| (C) \( \text{Al}_2 \text{O}_3 \) | (III) Neutral |
| (D) \( \text{N}_2 \text{O} \) | (IV) Acidic |

1 A-IV, B-III, C-I, D-II
2 A-IV, B-II, C-I, D-III
3 A-II, B-IV, C-III, D-I
4 A-I, B-II, C-III, D-IV
Shift-II
Ionic Equilibrium

229531 Which one of the following is not a conjugate acid base pair?

1 $\mathrm{HPO}_3^{2-}, \mathrm{PO}_3^{2-}$
2 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{HPO}_4^{2-}$
3 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{H}_3 \mathrm{PO}_4$
4 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{PO}_3^{3-}$
AP EAMCET (Engg.) -2007
Ionic Equilibrium

229533 The conjugate acid of $\mathrm{NH}_3$ is:

1 $\mathrm{NH}_2^{-}$
2 $\mathrm{NH}_2 \mathrm{OH}$
3 $\mathrm{N}_2 \mathrm{H}_4$
4 $\mathrm{NH}_4^{+}$
MPPET-2012
Ionic Equilibrium

229541 Match the following
| Acid | Ionization Constant (Ka) |
|--------------------|----------------------------|
| A)**Formic acid** | I)$4.9 \times 10^{-10}$ |
| B)**Niacin** | II)$1.5 \times 10^{-5}$ |
| C)**Hypochlorous acid**| III)$1.8 \times 10^{-4}$ |
| D)**Hydrocyanic acid**| IV)$3.0 \times 10^{-8}$ |

1 A - II,B - III,C - IV,D - I
2 A - I,B -II,C - III,,D - IV
3 A - III,B - II,C - IV,D - I
4 A - III,B - IV,C - I,D - II
Shift-II
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Ionic Equilibrium

229519 Match List-I with List-II
| List-I (Oxide) | List-II (Nature) |
|---------------------|--------------------|
| (A) \( \text{Cl}_2 \text{O}_7 \) | (I) Amphoteric |
| (B) \( \text{Na}_2 \text{O} \) | (II) Basic |
| (C) \( \text{Al}_2 \text{O}_3 \) | (III) Neutral |
| (D) \( \text{N}_2 \text{O} \) | (IV) Acidic |

1 A-IV, B-III, C-I, D-II
2 A-IV, B-II, C-I, D-III
3 A-II, B-IV, C-III, D-I
4 A-I, B-II, C-III, D-IV
Shift-II
Ionic Equilibrium

229531 Which one of the following is not a conjugate acid base pair?

1 $\mathrm{HPO}_3^{2-}, \mathrm{PO}_3^{2-}$
2 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{HPO}_4^{2-}$
3 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{H}_3 \mathrm{PO}_4$
4 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{PO}_3^{3-}$
AP EAMCET (Engg.) -2007
Ionic Equilibrium

229533 The conjugate acid of $\mathrm{NH}_3$ is:

1 $\mathrm{NH}_2^{-}$
2 $\mathrm{NH}_2 \mathrm{OH}$
3 $\mathrm{N}_2 \mathrm{H}_4$
4 $\mathrm{NH}_4^{+}$
MPPET-2012
Ionic Equilibrium

229541 Match the following
| Acid | Ionization Constant (Ka) |
|--------------------|----------------------------|
| A)**Formic acid** | I)$4.9 \times 10^{-10}$ |
| B)**Niacin** | II)$1.5 \times 10^{-5}$ |
| C)**Hypochlorous acid**| III)$1.8 \times 10^{-4}$ |
| D)**Hydrocyanic acid**| IV)$3.0 \times 10^{-8}$ |

1 A - II,B - III,C - IV,D - I
2 A - I,B -II,C - III,,D - IV
3 A - III,B - II,C - IV,D - I
4 A - III,B - IV,C - I,D - II
Shift-II
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Ionic Equilibrium

229519 Match List-I with List-II
| List-I (Oxide) | List-II (Nature) |
|---------------------|--------------------|
| (A) \( \text{Cl}_2 \text{O}_7 \) | (I) Amphoteric |
| (B) \( \text{Na}_2 \text{O} \) | (II) Basic |
| (C) \( \text{Al}_2 \text{O}_3 \) | (III) Neutral |
| (D) \( \text{N}_2 \text{O} \) | (IV) Acidic |

1 A-IV, B-III, C-I, D-II
2 A-IV, B-II, C-I, D-III
3 A-II, B-IV, C-III, D-I
4 A-I, B-II, C-III, D-IV
Shift-II
Ionic Equilibrium

229531 Which one of the following is not a conjugate acid base pair?

1 $\mathrm{HPO}_3^{2-}, \mathrm{PO}_3^{2-}$
2 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{HPO}_4^{2-}$
3 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{H}_3 \mathrm{PO}_4$
4 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{PO}_3^{3-}$
AP EAMCET (Engg.) -2007
Ionic Equilibrium

229533 The conjugate acid of $\mathrm{NH}_3$ is:

1 $\mathrm{NH}_2^{-}$
2 $\mathrm{NH}_2 \mathrm{OH}$
3 $\mathrm{N}_2 \mathrm{H}_4$
4 $\mathrm{NH}_4^{+}$
MPPET-2012
Ionic Equilibrium

229541 Match the following
| Acid | Ionization Constant (Ka) |
|--------------------|----------------------------|
| A)**Formic acid** | I)$4.9 \times 10^{-10}$ |
| B)**Niacin** | II)$1.5 \times 10^{-5}$ |
| C)**Hypochlorous acid**| III)$1.8 \times 10^{-4}$ |
| D)**Hydrocyanic acid**| IV)$3.0 \times 10^{-8}$ |

1 A - II,B - III,C - IV,D - I
2 A - I,B -II,C - III,,D - IV
3 A - III,B - II,C - IV,D - I
4 A - III,B - IV,C - I,D - II
Shift-II
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Ionic Equilibrium

229519 Match List-I with List-II
| List-I (Oxide) | List-II (Nature) |
|---------------------|--------------------|
| (A) \( \text{Cl}_2 \text{O}_7 \) | (I) Amphoteric |
| (B) \( \text{Na}_2 \text{O} \) | (II) Basic |
| (C) \( \text{Al}_2 \text{O}_3 \) | (III) Neutral |
| (D) \( \text{N}_2 \text{O} \) | (IV) Acidic |

1 A-IV, B-III, C-I, D-II
2 A-IV, B-II, C-I, D-III
3 A-II, B-IV, C-III, D-I
4 A-I, B-II, C-III, D-IV
Shift-II
Ionic Equilibrium

229531 Which one of the following is not a conjugate acid base pair?

1 $\mathrm{HPO}_3^{2-}, \mathrm{PO}_3^{2-}$
2 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{HPO}_4^{2-}$
3 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{H}_3 \mathrm{PO}_4$
4 $\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{PO}_3^{3-}$
AP EAMCET (Engg.) -2007
Ionic Equilibrium

229533 The conjugate acid of $\mathrm{NH}_3$ is:

1 $\mathrm{NH}_2^{-}$
2 $\mathrm{NH}_2 \mathrm{OH}$
3 $\mathrm{N}_2 \mathrm{H}_4$
4 $\mathrm{NH}_4^{+}$
MPPET-2012
Ionic Equilibrium

229541 Match the following
| Acid | Ionization Constant (Ka) |
|--------------------|----------------------------|
| A)**Formic acid** | I)$4.9 \times 10^{-10}$ |
| B)**Niacin** | II)$1.5 \times 10^{-5}$ |
| C)**Hypochlorous acid**| III)$1.8 \times 10^{-4}$ |
| D)**Hydrocyanic acid**| IV)$3.0 \times 10^{-8}$ |

1 A - II,B - III,C - IV,D - I
2 A - I,B -II,C - III,,D - IV
3 A - III,B - II,C - IV,D - I
4 A - III,B - IV,C - I,D - II
Shift-II
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