Q. No.The number of oxides among the following that exhibit an amphoteric nature is:
(a) \(Na_2O\)
(b) \(As_2O_3\)
(c) \(NO\)
(d) \(N_2O\)
(e) \(Cl_2O_7\)
1. 0
2. 1
3. 2
4. 3
(a) \(Na_2O\)
(b) \(As_2O_3\)
(c) \(NO\)
(d) \(N_2O\)
(e) \(Cl_2O_7\)
1. 0
2. 1
3. 2
4. 3
Subtopic: Nature of Compound |
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Subtopic: Nature of Compound |
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Consider the following compounds:
BeO, BaO, Be(OH)2, Sr(OH)2
The amphoteric compound(s) are:
| 1. | BeO, BaO | 2. | BaO, Be(OH)2 |
| 3. | Be(OH)2, BeO | 4. | Sr(OH)2, Be(OH)2 |
Subtopic: Nature of Compound |
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Subtopic: Nature of Compound |
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Among \(\mathrm{Al}_{2} \mathrm{O}_{3}, \mathrm{SiO}_{2}, \mathrm{P}_{2} \mathrm{O}_{3}\) and \(\mathrm{SO}_{2}\) the correct order of acid strength is:
1. \(\mathrm{SO}_{2}<\mathrm{P}_{2} \mathrm{O}_{3}<\mathrm{SiO}_{2}<\mathrm{Al}_{2} \mathrm{O}_{3}\)
2. \(\mathrm{SiO}_{2}<\mathrm{SO}_{2}<\mathrm{Al}_{2} \mathrm{O}_{3}<\mathrm{P}_{2} \mathrm{O}_{3}\)
3. \(\mathrm{Al}_{2} \mathrm{O}_{3}<\mathrm{SiO}_{2}<\mathrm{SO}_{2}<\mathrm{P}_{2} \mathrm{O}_{3}\)
4. \(\mathrm{Al}_{2} \mathrm{O}_{3}<\mathrm{SiO}_{2}<\mathrm{P}_{2} \mathrm{O}_{3}<\mathrm{SO}_{2}\)
Subtopic: Nature of Compound |
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Subtopic: Nature of Compound |
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Which of the following molecule is an acidic oxide?
1. \(\mathrm{N}_2 \mathrm{O}_3\)
2. \(\mathrm{NO}\)
3. \(\mathrm{CO}\)
4. \(\mathrm{CaO}\)
1. \(\mathrm{N}_2 \mathrm{O}_3\)
2. \(\mathrm{NO}\)
3. \(\mathrm{CO}\)
4. \(\mathrm{CaO}\)
Subtopic: Nature of Compound |
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Which of the following is correct?
1. Non-metals are generally more electronegative than metals
2. Non-metallic oxides are generally basic
3. Metallic oxides are generally acidic or neutral
4. Non-metallic oxides have always lower ionisation enthalpy than metals
1. Non-metals are generally more electronegative than metals
2. Non-metallic oxides are generally basic
3. Metallic oxides are generally acidic or neutral
4. Non-metallic oxides have always lower ionisation enthalpy than metals
Subtopic: Nature of Compound |
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How many oxides are amphoteric in nature?
\(\mathrm{SnO}_2, \mathrm{PbO}_2, \mathrm{SiO}_2, \mathrm{P}_2 \mathrm{O}_5, \mathrm{Al}_2 \mathrm{O}_3, \mathrm{CO}_2, \mathrm{CO}, \mathrm{NO}, \mathrm{N}_2 \mathrm{O}\)
1. 3
2. 2
3. 4
4. 8
\(\mathrm{SnO}_2, \mathrm{PbO}_2, \mathrm{SiO}_2, \mathrm{P}_2 \mathrm{O}_5, \mathrm{Al}_2 \mathrm{O}_3, \mathrm{CO}_2, \mathrm{CO}, \mathrm{NO}, \mathrm{N}_2 \mathrm{O}\)
1. 3
2. 2
3. 4
4. 8
Subtopic: Nature of Compound |
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Which of the following option contain amphoteric oxide(s) only?
1. \(\text{SnO}_2\) and SiO
2. \(\text{SiO}_2\)
3. \(\text{SnO}_2\) and \(\text{PbO}_2\)
4. CO and SiO
1. \(\text{SnO}_2\) and SiO
2. \(\text{SiO}_2\)
3. \(\text{SnO}_2\) and \(\text{PbO}_2\)
4. CO and SiO
Subtopic: Nature of Compound |
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