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Q. No.Given below are two statements:
| Statement I: |
The order of bond dissociation energy for halogens is: Cl2 > Br2 > F2 > I2. |
| Statement II: | Bond dissociation energy is independent of bond order. |
| 1. | Both Statement I and Statement II are correct. |
| 2. | Both Statement I and Statement II are incorrect. |
| 3. | Statement I is correct, but Statement II is incorrect. |
| 4. | Statement I is incorrect, but Statement II is correct. |
Subtopic: Group 17 - Preparation, Properties & Uses |
62%
Level 2: 60%+
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Given below are two statements:
Statement I : The correct order of electron affinity is Cl > Br > S > O
Statement-II : Correct order of ionic character is PbCl2 < PbCl4 , UF6 < UF4 , SnCl4 > SnCl2
1. Statement I is correct and statement II is incorrect.
2. Both statement I and II are correct.
3. Statement I is incorrect and statement II is correct.
4. Both statement I and II
Statement I : The correct order of electron affinity is Cl > Br > S > O
Statement-II : Correct order of ionic character is PbCl2 < PbCl4 , UF6 < UF4 , SnCl4 > SnCl2
1. Statement I is correct and statement II is incorrect.
2. Both statement I and II are correct.
3. Statement I is incorrect and statement II is correct.
4. Both statement I and II
Subtopic: Group 17 - Preparation, Properties & Uses | Group 16 - Preparation, Properties & Uses |
Level 4: Below 35%
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| List -I Species |
List-II Hybridization |
List-III Shape |
|
| (A) | \(IF_3\) | \(sp^3\) | T-shape |
| (B) | \(IF_7\) | \(sp^3d^3\) | P.B.P |
| (C) | \(IF_5\) | \(sp^3d^2\) | square pyramidal |
| (D) | \(CIO^-_4\) | \(dsp^2\) | square planar |
Select the correct match:
1. A, B, C
2. A, B, C, D
3. B, C, D
4. A, B, D
Subtopic: Group 17 - Preparation, Properties & Uses |
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Which of the following is correct if 'X' is the most electronegative element and Y is the least electronegative element in the group 15 elements N, P, As and Sb?
1. \(X_2O_3\) is acidic and \(Y_2O_3\) is amphoteric
2. \(X_2O_3\) is basic and \(Y_2O_3\) is amphoteric
3. \(X_2O_3\) is acidic and \(Y_2O_3\) is basic
4. \(X_2O_3\) is amphoteric and \(Y_2O_3\) is acidic
1. \(X_2O_3\) is acidic and \(Y_2O_3\) is amphoteric
2. \(X_2O_3\) is basic and \(Y_2O_3\) is amphoteric
3. \(X_2O_3\) is acidic and \(Y_2O_3\) is basic
4. \(X_2O_3\) is amphoteric and \(Y_2O_3\) is acidic
Subtopic: Group 15 - Preparation, Properties & Uses |
65%
Level 2: 60%+
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The large difference between the melting and boiling points of oxygen and sulphur may be explained based on:
1. Atomic size
2. Atomicity
3. Electronegativity
4. Electron gain enthalpy
1. Atomic size
2. Atomicity
3. Electronegativity
4. Electron gain enthalpy
Subtopic: Group 16 - Preparation, Properties & Uses |
57%
Level 3: 35%-60%
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Which of the following statements is incorrect?
| 1. | PH3 shows lower proton affinity than NH3. |
| 2. | PF3 exists but NF5 does not. |
| 3. | NO2 can dimerise easily. |
| 4. | SO2 can act as an oxidizing agent, but not as a reducing agent. |
Subtopic: Group 16 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |
74%
Level 2: 60%+
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Consider the following statements:
In the light of above statements, choose the correct option.
| Statement I: | \(\mathrm{N-N} \) bond has less bond strength than \(\mathrm{P-P} \) bond |
| Statement II: | All group \(15\) elements in \(+3\) oxidation state undergoes disproportionation. |
In the light of above statements, choose the correct option.
| 1. | Statement I and Statement II both are correct. |
| 2. | Statement I and Statement II both are incorrect. |
| 3. | Statement I is correct but Statement II is incorrect. |
| 4. | Statement I is incorrect but Statement II is correct. |
Subtopic: Group 15 - Preparation, Properties & Uses |
56%
Level 3: 35%-60%
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Determine the molecular geometry of a compound AX₄Y, based on the given conditions:
(i) All elements are from the p-block
(ii) A is a monoatomic and non-radioactive element
(iii) X is more electronegative than Y
| 1. | Square pyramidal | 2. | Tetrahedral |
| 3. | Pentagonal bipyramidal | 4. | Octahedral |
Subtopic: Group 18 - Preparation, Properties & Uses |
64%
Level 2: 60%+
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Which property of Group 17 elements deviates from the usual periodic trend observed down the group?
1. Electron affinity
2. Ionisation energy
3. Covalent radii
4. Ionic radii
Subtopic: Group 17 - Preparation, Properties & Uses |
71%
Level 2: 60%+
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Consider the given reaction:
\(\mathrm{KMnO}_4+\text { conc. } \mathrm{H}_2 \mathrm{SO}_4 \xrightarrow{\text { Salt }(\mathrm{X})}\) Greenish-yellow gas
Salt (X) contains:
1. \(F^{-}\)
2. \(Cl^{-}\)
3. \(Br^-\)
4. \(I^-\)
\(\mathrm{KMnO}_4+\text { conc. } \mathrm{H}_2 \mathrm{SO}_4 \xrightarrow{\text { Salt }(\mathrm{X})}\) Greenish-yellow gas
Salt (X) contains:
1. \(F^{-}\)
2. \(Cl^{-}\)
3. \(Br^-\)
4. \(I^-\)
Subtopic: Group 17 - Preparation, Properties & Uses |
86%
Level 1: 80%+
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