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Q. No.Which compound among the following represents an expanded octet?
1. \(\text{BeH}_2 \)
2. \(\text{LiCl}\)
3. \(\text{H}_2\text{SO}_4 \)
4. \(\text{NO} \)
Subtopic: Resonance & Nature of Compounds |
80%
From NCERT
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Non-polar molecule among the following is/are:
1. (a) and (d) only
2. (a), (b), (c) and (d)
3. (a), (b) and (d) only
4. (b) and (d) only
| a. |  |
b. |  |
| c. |  |
d. |  |
1. (a) and (d) only
2. (a), (b), (c) and (d)
3. (a), (b) and (d) only
4. (b) and (d) only
Subtopic: Polarity |
69%
From NCERT
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Repulsive interaction of electron pairs follow the order:
| 1. | LP-LP > BP-BP > LP-BP |
| 2. | LP-BP > BP-BP > LP-LP |
| 3. | LP-LP > LP-BP > BP-BP |
| 4. | BP-BP > LP-BP > LP-LP |
Subtopic: V.S.E.P.R & V.B.T |
95%
From NCERT
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Match molecules in List I with the Corresponding shape in List II:
Choose the correct answer from the options given below:
| List-I (Molecules) |
List-II (Shape) |
||
| (a) | NH3 | (i) | Square pyramidal |
| (b) | ClF3 | (ii) | Trigonal bipyramidal |
| (c) | PCl5 | (iii) | Trigonal pyramidal |
| (d) | BrF5 | (iv) | T-shape |
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iv) | (iii) | (i) | (ii) |
| 4. | (iii) | (iv) | (i) | (ii) |
Subtopic: V.S.E.P.R & V.B.T |
82%
From NCERT
NEET - 2022
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The correct order of bond angles in the following compounds/ species is:
1. \(\mathrm{H}_2 \mathrm{O}<\mathrm{NH}_3<\mathrm{NH}_4^{+}<\mathrm{CO}_2 \)
2. \(\mathrm{H}_2 \mathrm{O}<\mathrm{NH}_4^{+}<\mathrm{NH}_3<\mathrm{CO}_2 \)
3. \(\mathrm{H}_2 \mathrm{O}<\mathrm{NH}_4^{+}=\mathrm{NH}_3<\mathrm{CO}_2 \)
4. \(\mathrm{CO}_2<\mathrm{NH}_3<\mathrm{H}_2 \mathrm{O}<\mathrm{NH}_4^{+} \)
1. \(\mathrm{H}_2 \mathrm{O}<\mathrm{NH}_3<\mathrm{NH}_4^{+}<\mathrm{CO}_2 \)
2. \(\mathrm{H}_2 \mathrm{O}<\mathrm{NH}_4^{+}<\mathrm{NH}_3<\mathrm{CO}_2 \)
3. \(\mathrm{H}_2 \mathrm{O}<\mathrm{NH}_4^{+}=\mathrm{NH}_3<\mathrm{CO}_2 \)
4. \(\mathrm{CO}_2<\mathrm{NH}_3<\mathrm{H}_2 \mathrm{O}<\mathrm{NH}_4^{+} \)
Subtopic: V.S.E.P.R & V.B.T |
67%
From NCERT
NEET - 2022
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NEET 2025 - Target Batch
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The molecules that have an overall permanent dipole moment among the following is/are:
(A) CO2
(B) H2O
(C) NH3
(A) CO2
(B) H2O
(C) NH3
| 1. | A and C only | 2. | C and B only |
| 3. | A, B, and C | 4. | None of these |
Subtopic: Polarity |
83%
From NCERT
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Match List I with List II and mark the appropriate option.
| List I (Types of bond) |
List II (Molecules) |
| A. Ionic | I. NH3.BF3 |
| B. Covalent | II. HCl |
| C. Hydrogen bond | III. LiF |
| D. Coordinate bond | IV. HF |
| A | B | C | D | |
| 1 | II | III | IV | I |
| 2 | III | II | I | IV |
| 3 | III | II | IV | I |
| 4 | II | III | I | IV |
Subtopic: van der Waal Force & Hydrogen Bonding | Resonance & Nature of Compounds |
62%
From NCERT
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If an extra electron is added to the hypothetical molecule C2, this extra electron will occupy the molecular orbital:
1. \(\pi_{2p}\)*
2. \(\pi_{2p}\)
3. \(\sigma_{2p}\)*
4. \(\sigma_{2p}\)
1. \(\pi_{2p}\)*
2. \(\pi_{2p}\)
3. \(\sigma_{2p}\)*
4. \(\sigma_{2p}\)
Subtopic: M.O.T |
55%
From NCERT
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Subtopic: Acidic, Basic Character & Fajan's Rule |
60%
From NCERT
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Given the following five species:
\(\mathrm{NH}_3, \mathrm{AlCl}_3, \mathrm{BeCl}_2, \mathrm{CCl}_4, \mathrm{PCl}_5 \)
The total number of these species that do not have eight electrons around the central atom in its/their outermost shell, is/are:
\(\mathrm{NH}_3, \mathrm{AlCl}_3, \mathrm{BeCl}_2, \mathrm{CCl}_4, \mathrm{PCl}_5 \)
The total number of these species that do not have eight electrons around the central atom in its/their outermost shell, is/are:
| 1. | 1 | 2. | 3 |
| 3. | 2 | 4. | 4 |
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
61%
From NCERT
NEET - 2023
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NEET 2025 - Target Batch
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