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Q. No.The molecular geometry of XeF5⁺ will be:
1. Square pyramidal
2. Square planar
3. Trigonal bipyramidal
4. Octahedral
Subtopic: Hybridisation |
69%
Level 2: 60%+
Hints
| Assertion (A): | C3O2 is a linear structure. |
| Reason (R): | Each C atom in C3O2 is sp hybridized. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Hybridisation |
77%
Level 2: 60%+
Hints
Identify the incorrect statement among the following options:
| 1. | \(O^+_2\) ion is diamagnetic. |
| 2. | The bond orders of \(O_2^{+},O_2,O^-_2\) and \(O_2^{2-}\) are 2.5, 2, 1.5, and 1, respectively. |
| 3. | \(C_2\) molecule has four electrons in its two degenerate \(\pi \) molecular orbitals. |
| 4. | \(H^+_2 \) ion has one electron. |
Subtopic: M.O.T |
79%
Level 2: 60%+
NEET - 2022
Hints
Amongst the following, which one will have maximum 'lone pair - lone pair' electron repulsions?
1. \(\mathrm{XeF_2}\)
2. \(\mathrm{CIF_3}\)
3. \(\mathrm{IF_5}\)
4. \(\mathrm{SF_4}\)
1. \(\mathrm{XeF_2}\)
2. \(\mathrm{CIF_3}\)
3. \(\mathrm{IF_5}\)
4. \(\mathrm{SF_4}\)
Subtopic: V.S.E.P.R & V.B.T |
76%
Level 2: 60%+
NEET - 2022
Hints
Which one of the following is the correct order of decreasing bond enthalpies for the given species?
1. \(\mathrm {O^{2-}_2>O^-_2>O_2>N_2 }\)
2. \(\mathrm {N_2>O_2>O^{2-}_2>O^-_2 }\)
3. \(\mathrm {N_2>O_2>O^-_2>O^{2-}_2 }\)
4. \(\mathrm {O_2>N_2>O^-_2>O^{2-}_2 }\)
Subtopic: M.O.T |
75%
Level 2: 60%+
NEET - 2022
Hints
Match the molecules in Column-I with their corresponding molecular shapes in Column-II.
Choose the correct matching sequence:
| Column-I (Molecule) |
Column-II (Shape) |
||
| (i) | BF3 | (a) | T-shape |
| (ii) | SF4 | (b) | Square planar |
| (iii) | XeF4 | (c) | See-saw |
| (iv) | ClF3 | (d) | Trigonal planar |
| (i) | (ii) | (iii) | (iv) | |
| 1. | d | c | b | a |
| 2. | a | b | c | d |
| 3. | d | a | c | d |
| 4. | b | c | d | a |
Subtopic: V.S.E.P.R & V.B.T |
86%
Level 1: 80%+
JEE
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Hints
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| Assertion (A): | Sigma (\(\sigma\)) bond is strong, while pi (\(\pi\)) bond is weak. |
| Reason (R): | Atoms rotate freely about pi (\(\pi\)) bond. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Types of Chemical Bond |
71%
Level 2: 60%+
Hints
Subtopic: Acidic, Basic Character & Fajan's Rule |
62%
Level 2: 60%+
Please attempt this question first.
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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%
Level 3: 35%-60%
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Hints
Please attempt this question first.
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%
Level 2: 60%+
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