Q. No.Given below are two statements :
In the light of the above statements, choose the most appropriate answer from the options given below :
| Statement I: | Like nitrogen that can form ammonia, arsenic can form arsine. |
| Statement II: | Antimony cannot form antimony pentoxide. |
| 1. | Statement I is correct but Statement II is incorrect |
| 2. | Statement I is incorrect but Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: Group 15 - Preparation, Properties & Uses |
From NCERT
NEET - 2025
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Identify the incorrect statement about \(\mathrm{PCl_5}\).
| 1. | \(\mathrm{PCl_5}\) possesses two different \(\mathrm{Cl-P-Cl}\) bond angles. |
| 2. | All five \(\mathrm{P-Cl}\) bonds are identical in length. |
| 3. | \(\mathrm{PCl_5}\) exhibits sp3d hybridisation. |
| 4. | \(\mathrm{PCl_5}\) consists of five \(\mathrm{P-Cl}\) (sigma) bonds. |
Subtopic: Group 15 - Preparation, Properties & Uses |
79%
From NCERT
NEET - 2024
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Identify the incorrect statement.
| 1. | \(\mathrm{PEt}_3\) and \(\mathrm{Asph}_3\) as ligands can form \(\mathrm{d} \pi-\mathrm{d} \pi\) bond with transition metals. |
| 2. | The \(\mathrm{N}-\mathrm{N}\) single bond is as strong as the \(\mathrm{P}-\mathrm{P}\) single bond. |
| 3. | Nitrogen has unique ability to form \(\mathrm{p \pi-p \pi}\) multiple bonds with nitrogen, carbon and oxygen. |
| 4. | Nitrogen cannot form \(\mathrm{d} \pi-\mathrm{p} \pi\) bond as other heavier elements of its group. |
Subtopic: Group 15 - Preparation, Properties & Uses |
78%
From NCERT
NEET - 2024
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The correct order for boiling points of the following compounds is:
| 1. | AsH3 > PH3 > NH3 > SbH3 > BiH3 |
| 2. | BiH3 > SbH3 > NH3 > AsH3 > PH3 |
| 3. | NH3 > PH3 > AsH3 > SbH3 > BiH3 |
| 4. | PH3 > NH3 > AsH3 > SbH3 > BiH3 |
Subtopic: Group 15 - Preparation, Properties & Uses |
65%
From NCERT
NEET - 2022
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The reaction that is a part of large scale industrial preparation of nitric acid is:
| 1. | \(\mathrm{NaNO}_3+\mathrm{H}_2 \mathrm{SO}_4\xrightarrow[500~K, \ 9\text{ bar}]{Pt} \mathrm{NaHSO}_4+\mathrm{HNO}_3\) |
| 2. | \(4 \mathrm{NH}_3+5 \mathrm{O}_2 \text{(from air)}\xrightarrow[500~K, \ 9\text{ bar}]{Pt} 4 \mathrm{NO}+6 \mathrm{H}_2 \mathrm{O}\) |
| 3. | \(4 \mathrm{HPO}_3+2 \mathrm{~N}_2 \mathrm{O}_5\xrightarrow[500~K, \ 9\text{ bar}]{Pt} 4 \mathrm{HNO}_3+\mathrm{P}_4 \mathrm{O}_{10}\) |
| 4. | \(\mathrm{Cu}\left(\mathrm{NO}_3\right)_2+2 \mathrm{NO}_2+2 \mathrm{H}_2 \mathrm{O} \\ \xrightarrow[500~K, \ 9\text{ bar}]{Pt} 4 \mathrm{HNO}_3+\mathrm{Cu}\) |
Subtopic: Group 15 - Preparation, Properties & Uses |
60%
From NCERT
NEET - 2022
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In which one of the following arrangements the given sequence is not strictly according to the properties indicated against it?
| 1. | NH3 < PH3 < AsH3 < SbH3 | Increasing acidic character |
| 2. | CO2 < SiO2 < SnO2 < PbO2 | Increasing oxidizing power |
| 3. | HF < HCl < HBr < HI | Increasing acidic strength |
| 4. | H2O < H2S < H2Se < H2Te | Increasing pKa values |
Subtopic: Group 15 - Preparation, Properties & Uses |
66%
From NCERT
NEET - 2021
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Which one of the following reactions does not come under hydrolysis type reaction?
1. \(\mathrm{S i C l_{4 \left( l \right)} + 2 H_{2} O_{\left( l \right)} \rightarrow S i O_{2 \left( s \right)} + 4 H C l_{\left( a q \right)}}\)
2. \(\mathrm{L i_{3} N_{\left( s \right)} + 2 H_{2} O_{\left( l \right)} \rightarrow N H_{3 \left( g \right)} + 3 L i O H_{\left( a q \right)}}\)
3. \(\mathrm{2 F_{2 \left( g \right)} + 2 H_{2} O_{\left( l \right)} \rightarrow 4 H F_{\left( a q \right)} + O_{2 \left( g \right)}}\)
4. \(\mathrm{P_{4} O_{10 \left( s \right)} + 6 H_{2} O_{\left( l \right)} \rightarrow 4 H_{3} P O_{4 \left( a q \right)}}\)
Subtopic: Group 15 - Preparation, Properties & Uses |
50%
From NCERT
NEET - 2020
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Match the name of process given in Column I with the name of compound given in Column II and mark the correct option.
| Column I | Column II | ||
| (a) | Pure nitrogen | (i) | Chlorine |
| (b) | Haber process | (ii) | Sulphuric acid |
| (c) | Contact process | (iii) | Ammonia |
| (d) | Deacon's process | (iv) | Sodium azide or Barium azide |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (iii) | (ii) | (i) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (ii) | (iv) | (i) | (iii) |
| 4. | (iii) | (iv) | (ii) | (i) |
Subtopic: Group 15 - Preparation, Properties & Uses |
87%
From NCERT
NEET - 2019
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False statement regarding PCl5 is:
| 1. | PCl5 molecule is non-reactive. |
| 2. | Three equatorial P-Cl bonds make an angle of 120° with each other. |
| 3. | Two axial P-Cl bonds make an angle of 180° with each other. |
| 4. | Axial P-Cl bonds are longer than equatorial P-Cl bonds. |
Subtopic: Group 15 - Preparation, Properties & Uses |
76%
From NCERT
NEET - 2019
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Among the following oxoacids of phosphorus, the strongest reducing property is for:
1. H4P2O7
2. H3PO3
3. H3PO2
4. H3PO4
1. H4P2O7
2. H3PO3
3. H3PO2
4. H3PO4
Subtopic: Group 15 - Preparation, Properties & Uses |
66%
From NCERT
NEET - 2019
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