Select the correct option based on statements below:
Assertion (A):
PF5 and IF3 have similar shapes.
Reason (R):
All the bond lengths are equal in PF5.
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: Group 15 - Preparation, Properties & Uses |
67%
From NCERT
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Select the correct option based on statements below:
| Assertion (A): | The atomic size of F is smaller than that of Cl. |
| Reason (R): | F-F bond is stronger than the Cl-Cl 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. | (A) is false but (R) is true. |
Subtopic: Group 17 - Preparation, Properties & Uses |
66%
From NCERT
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Select the correct option based on statements below:
| Assertion (A): | Noble gases have the highest ionization energies in their respective periods. |
| Reason (R): | The outermost sub-shell of noble gases in which the electron enters is completely filled. |
| 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: Group 18 - Preparation, Properties & Uses |
From NCERT
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Select the correct option based on statements below:
| Assertion (A): | The valency and oxidation number of sulphur in S8 respectively are 2 and 0. |
| Reason (R): | S8 Rhombic is the most stable allotropic form of sulphur. |
| 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: Group 16 - Preparation, Properties & Uses |
72%
From NCERT
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The given sequence among the following arrangements that is not strictly according to the property indicated against it.
| 1. | H2O < H2S < H2Se < H2Te : \(\small{\text{increasing} \ p K_{a}\ \text{values}}\) |
| 2. | \(\small{\mathrm{N H_{3} < P H_{3} < A s H_{3} < S b H_{3}} : \text{increasing acidic character}}\) |
| 3. | \(\small{\mathrm{C O_{} < S i O_{} < S n O_{} < P b O_{2}} : \text{increasing oxidising power}} \) |
| 4. | \(\small{\mathrm{H F < H C l < H B r < H I} : \text{increasing acidic strength}} \) |
Subtopic: Group 17 - Preparation, Properties & Uses | Group 16 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |
80%
From NCERT
AIPMT - 2012
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Subtopic: Group 15 - Preparation, Properties & Uses |
50%
AIPMT - 2010
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Match List-I (substances) with List-II (processes) employed in the manufacture of the substances and select the correct option.
| List –I (Substances) | List – II (Processes) |
| (a) Sulphuric acid | (i) Haber's Process |
| (b) Steel | (ii) Bessemer's Process |
| (c) Sodium carbonate | (iii) Leblanc Process |
| (d) Ammonia | (iv) Contact Process |
| Options : | (a) | (b) | (c) | (d) |
| 1. | (i) | (ii) | (iii) | (iv) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (iv) | (ii) | (iii) | (i) |
| 4. | (i) | (iv) | (ii) | (iii) |
Subtopic: Group 16 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |
57%
From NCERT
AIPMT - 2010
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Select the correct option based on statements below:
| Assertion (A): | H2O is the only hydride of the chalcogen family that is liquid. |
| Reason (R): | The acidic nature of hydrides of the chalcogen family increases down the group. |
| 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: Group 16 - Preparation, Properties & Uses |
80%
From NCERT
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Wrong statement among the following is:
1. Bond energy of F2 > Cl2
2. Electronegativity of F > Cl
3. F is more oxidizing than Cl
4. Electron affinity of Cl > F
Subtopic: Group 17 - Preparation, Properties & Uses |
83%
From NCERT
AIPMT - 2000
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From the given options, the compound that has a planar structure is:
1. XeF4
2. XeOF2
3. XeO2F2
4. XeO4
Subtopic: Group 18 - Preparation, Properties & Uses |
79%
From NCERT
AIPMT - 2000
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NEET 2026 - Target Batch - Vital
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