- 1(current)
Q. No.Which of the following sets does not contain isoelectronic species?
| 1. | \(BO_{3}^{3 -} , CO_{3}^{2 -} , NO_{3}^{-}\) | 2. | \(SO_{3}^{2 -} , CO_{3}^{2 -} , NO_{3}^{-}\) |
| 3. | \(\left(CN\right)^{-} , N_{2} , C_{2}^{2 -}\) | 4. | \(PO_{4}^{3 -} , SO_{4}^{2 -} , ClO_{4}^{-}\) |
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
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Level 1: 80%+
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The pair of ions that is isoelectronic with \(\text{Al}^{3+}\) ion is:
1. \(\mathrm{Mg}^{2+}, \mathrm{O}^{2-} \)
2. \(\mathrm{Na}^{+}, \mathrm{N}^{2-} \)
3. \(\mathrm{C}^{4-}, \mathrm{Cl}^{-} \)
4. \(\mathrm{F}^{-}, \mathrm{Mg}^{+} \)
1. \(\mathrm{Mg}^{2+}, \mathrm{O}^{2-} \)
2. \(\mathrm{Na}^{+}, \mathrm{N}^{2-} \)
3. \(\mathrm{C}^{4-}, \mathrm{Cl}^{-} \)
4. \(\mathrm{F}^{-}, \mathrm{Mg}^{+} \)
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
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Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
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Given below are two statements:
| Statement I: | \(O^{2-}\) and \(Mg^{2+} \) have equal radii. |
| Statement II: | They are isoelectronic species. |
| 1. | Both Statement I and Statement II are correct. |
| 2. | Both Statement I and Statement II are incorrect. |
| 3. | Statement I is correct and Statement II is incorrect. |
| 4. | Statement I is incorrect and Statement II is correct. |
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
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Which of the following compound(s) is/are paramagnetic in nature?
(a) NO2
(b) NO
(c) K2O
(d) Na2O2
1. (a) & (b) only
2. (a), (b) & (c) only
3. (a), (b), (c) & (d)
4. (a), (b) & (d) only
(a) NO2
(b) NO
(c) K2O
(d) Na2O2
1. (a) & (b) only
2. (a), (b) & (c) only
3. (a), (b), (c) & (d)
4. (a), (b) & (d) only
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
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Level 2: 60%+
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Find out the magnetic properties of Li2O, KO2, and MgO in that order.
1. Diamagnetic, Paramagnetic and Diamagnetic
2. Paramagnetic, Paramagnetic and Diamagnetic
3. Diamagnetic, Paramagnetic and Paramagnetic
4. Diamagnetic, Diamagnetic and Diamagnetic
1. Diamagnetic, Paramagnetic and Diamagnetic
2. Paramagnetic, Paramagnetic and Diamagnetic
3. Diamagnetic, Paramagnetic and Paramagnetic
4. Diamagnetic, Diamagnetic and Diamagnetic
Subtopic: M.O.T | Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
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How many of the following compounds are odd electron species?
\(NO_2, NO_2^+, ICl_4^−, BrF_3, NO~ \)
1. 2
2. 0
3. 5
4. 3
\(NO_2, NO_2^+, ICl_4^−, BrF_3, NO~ \)
1. 2
2. 0
3. 5
4. 3
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
77%
Level 2: 60%+
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Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
76%
Level 2: 60%+
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Match the molecules in List-I based on their classification according to the octet rule with the correct examples in List-II:
Choose the correct answer from the options given below:
| List-I (Classification of molecules based on octet rule) | List-II (Example) |
||
| A. |
Molecules that adhere to the octet rule. |
I. | NO, NO2 |
| B. | Molecules with an incomplete octet | II. | BCl3 , AlCl3 |
| C. | Molecules with incomplete octets with odd electron | III. | H2SO4 , PCl5 |
| D. | Molecules with an expanded octet | IV. | CCl4 , CO2 |
| 1. | A-IV, B-II, C-I, D-III | 2. | A-III, B-II, C-I, D-IV |
| 3. | A-IV, B-I, C-III, D-II | 4. | A-II, B-IV, C-III, D-I |
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
88%
Level 1: 80%+
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- 1(current)
Q. No.
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