Q. No.Which of the following is the correct order with respect to the property indicated against it ?
(1) B > S > P > F (Ionization energy)
(2) \(K_2O > Na_2O >MgO > Al_2O_3\) (Basic nature)
(3) K > Na > Al > Mg (Metallic character)
(4) Cl > F > S > P (EA)
Choose the correct option:
1. 1, 2, 3 are correct
2. 2 and 4 are correct
3. 1, 2, 4 are correct
4. 1 and 3 are correct
(1) B > S > P > F (Ionization energy)
(2) \(K_2O > Na_2O >MgO > Al_2O_3\) (Basic nature)
(3) K > Na > Al > Mg (Metallic character)
(4) Cl > F > S > P (EA)
Choose the correct option:
1. 1, 2, 3 are correct
2. 2 and 4 are correct
3. 1, 2, 4 are correct
4. 1 and 3 are correct
Subtopic: Electron Affinity (EA) | Nature of Compound |
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Level 1: 80%+
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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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Level 1: 80%+
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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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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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Consider the given two statements:
| Statement I: | There is a regular increase in chemical reactivity from group 1 to group 18. |
| Statement II: | Oxides of group-1 elements are basic, and oxides of group 17 are acidic. |
| 1. | Both Statement I and Statement II are correct. |
| 2. | Statement I is correct and Statement II is incorrect. |
| 3. | Statement I is incorrect and Statement II is correct |
| 4. | Both Statement I and Statement II are incorrect. |
Subtopic: Modern Periodic Table & Periodicity | Nature of Compound |
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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 |
70%
Level 2: 60%+
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Subtopic: Nature of Compound |
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How many of the following oxides are amphoteric?
Na₂O, As₂O₃, N₂O, NO, Cl₂O₇
1. \(0\)
2. \(1\)
3. \(2\)
4. \(3\)
Na₂O, As₂O₃, N₂O, NO, Cl₂O₇
1. \(0\)
2. \(1\)
3. \(2\)
4. \(3\)
Subtopic: Nature of Compound |
78%
Level 2: 60%+
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The total number of acidic oxides from the following list is:
\(\mathrm{NO}, \mathrm{N}_2 \mathrm{O}, \mathrm{B}_2 \mathrm{O}_3, \mathrm{~N}_2 \mathrm{O}_5, \mathrm{CO}, \mathrm{SO}_3, \mathrm{P}_4 \mathrm{O}_{10}\)
1. Three (3)
2. Four (4)
3. Five (5)
4. Six (6)
\(\mathrm{NO}, \mathrm{N}_2 \mathrm{O}, \mathrm{B}_2 \mathrm{O}_3, \mathrm{~N}_2 \mathrm{O}_5, \mathrm{CO}, \mathrm{SO}_3, \mathrm{P}_4 \mathrm{O}_{10}\)
1. Three (3)
2. Four (4)
3. Five (5)
4. Six (6)
Subtopic: Nature of Compound |
56%
Level 3: 35%-60%
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