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Q. No.Amongst the following, which one will have maximum 'lone pair - lone pair' electron repulsions?
1. \(XeF_2\)
2. \(CIF_3\)
3. \(IF_5\)
4. \(SF_4\)
Subtopic: V.S.E.P.R & V.B.T |
74%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Which one of the following statements is true about the structure of \(CO^{2-}_3\) ion?
| 1. | It can be explained by considering sp3 hybridization. |
| 2. | Out of the three C–O bonds, two are longer and one is shorter. |
| 3. | It has three Sigma and three \(\pi\)-bonds. |
| 4. | All three C–O bonds are equal in length with a bond order in between 1 and 2. |
Subtopic: Resonance & Nature of Compounds |
53%
From NCERT
NEET - 2022
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Which one of the following is the correct order of decreasing bond enthalpies for the given species?
| 1. | \(O^{2-}_2>O^-_2>O_2>N_2 \) | 2. | \(N_2>O_2>O^{2-}_2>O^-_2 \) |
| 3. | \(N_2>O_2>O^-_2>O^{2-}_2 \) | 4. | \(O_2>N_2>O^-_2>O^{2-}_2 \) |
Subtopic: M.O.T |
71%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
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 |
66%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
Match List-I with 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 |
81%
From NCERT
NEET - 2022
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Identify incorrect the 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 |
78%
From NCERT
NEET - 2022
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The correct order of energies of molecular orbitals of N2 molecule is:
| 1. | \( \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<\) \(\sigma^* 2 s<\left(\pi 2 p_x=\pi 2 p_y\right)<\) \(\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma 2 p_z<\sigma^* 2 p_z\) |
| 2. | \( \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<\sigma^* 2 s<\) \(\left(\pi 2 p_x=\pi 2 p_y\right)< \) \(\sigma 2 p_z<\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma^* 2 p_z \) |
| 3. | \( \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<\sigma^* 2 s<\sigma 2 p_z<\) \( \left(\pi 2 p_x=\pi 2 p_y\right)<\) \(\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma^* 2 p_z \) |
| 4. | \( \sigma \text { 1s }<\sigma^* \text { 1s }\) \(<\sigma 2 s<\sigma^* 2 s<\sigma 2 p_z< \) \( \sigma^* 2 p_z<\left(\pi 2 p_x=\pi 2 p_y\right)<\) \(\left(\pi^* 2 p_x=\pi^* 2 p_y\right) \) |
Subtopic: M.O.T |
70%
From NCERT
NEET - 2023
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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 |
57%
From NCERT
NEET - 2023
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The correct order of dipole moments for molecules \(NH_3, H_2S , CH_4 \) and \(HF\) is :
| 1. | \(CH_4>H_2S>NH_3>HF \) |
| 2. | \(H_2S>NH_3>HF>CH_4 \) |
| 3. | \(NH_3>HF>CH_4>H_2~S \) |
| 4. | \(HF>NH_3>H_2S>CH_4\) |
Subtopic: Polarity |
65%
From NCERT
NEET - 2023
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Which one of the following represents all isoelectronic species?
1. \(Na^+ , Cl^-, O^- , NO^+\)
2. \(N_2O, N_2O_4 , NO^+, NO\)
3. \(Na^+ , Mg^{2+} , O^- , F^-\)
4. \(Ca^{2+} , Ar, K^+, Cl^-\)
1. \(Na^+ , Cl^-, O^- , NO^+\)
2. \(N_2O, N_2O_4 , NO^+, NO\)
3. \(Na^+ , Mg^{2+} , O^- , F^-\)
4. \(Ca^{2+} , Ar, K^+, Cl^-\)
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
75%
From NCERT
NEET - 2023
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