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: | Benzenediazonium salt is prepared by the reaction of aniline with nitrous acid at \(273-278~ \text{K}.\) It decomposes easily in the dry state |
| Statement II: | Insertion of iodine into the benzene ring is difficult and hence iodobenzene is prepared through the reaction of benzenediazonium salt with \(KI.\) |
In the light of the above statements, choose the most appropriate answer from the options given below:
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
60%
Level 2: 60%+
NEET - 2025
Please attempt this question first.
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Please attempt this question first.
Given below are two statements:
In the light of the above statements, choose the correct answer from the option given below:
| Statement I: | Benzendiazonium chloride is a colourless crystalline solid. It is insoluble in water but reacts with water when warmed. |
| Statement II: | Benzendiazonium chloride on reacting with HCI in presence of copper powder gives chlorobenzene as the product. This is an example of Gatterman reaction. |
| 1. | Both Statement I and Statement II is true. |
| 2. | Both Statement I and Statement II is false. |
| 3. | Statement I is true but Statement II is false. |
| 4. | Statement I is false but Statement II is true. |
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
Level 3: 35%-60%
NEET - 2024
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Subtopic: Diazonium Salts: Preparation, Properties & Uses |
57%
Level 3: 35%-60%
NEET - 2023
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Which of the following is the correct sequence of reagents for converting 4-nitrotoluene to 2-bromotoluene?
1. NaNO2/HCl; Sn/HCl; Br2; H2O/H3PO2
2. Sn/HCl; NaNO2/HCl; Br2; H2O/H3PO2
3. Br2; Sn/HCl; NaNO2/HCl; H2O/H3PO2
4. Sn/HCl; Br2; NaNO2/HCl; H2O/H3PO2
1. NaNO2/HCl; Sn/HCl; Br2; H2O/H3PO2
2. Sn/HCl; NaNO2/HCl; Br2; H2O/H3PO2
3. Br2; Sn/HCl; NaNO2/HCl; H2O/H3PO2
4. Sn/HCl; Br2; NaNO2/HCl; H2O/H3PO2
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
Level 3: 35%-60%
NEET - 2023
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Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
| Statement I: | Primary aliphatic amines react with HNO2 to give unstable diazonium salts. |
| Statement II | Primary aromatic amines react with HNO2 to form diazonium salts which are stable even above 300 K. |
| 1. | Statement I is incorrect but Statement II is correct |
| 2. | Both Statement I and II are correct |
| 3. | Both Statement I and II are incorrect |
| 4. | Statement I is correct but Statement II is incorrect |
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
52%
Level 3: 35%-60%
NEET - 2022
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Subtopic: Diazonium Salts: Preparation, Properties & Uses | Mechanism |
75%
Level 2: 60%+
NEET - 2022
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The reagent 'R' in the given sequence of a chemical reaction is :
| 1. | HI | 2. | CuCN/KCN |
| 3. | H2O | 4. | CH3CH2OH |
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
57%
Level 3: 35%-60%
NEET - 2021
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Subtopic: Diazonium Salts: Preparation, Properties & Uses |
85%
Level 1: 80%+
AIPMT - 2014
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Links
The most stable diazonium salt among the following is:
1. \(CH_{3}N_{2}^{+}X^{-}\)
2. \(C_{6}H_{5}N_{2}^{+}X^{-}\)
3. \(CH_{3}CH_{2}N_{2}^{+}X^{-}\)
4. \(C_{6}H_{5}CH_{2}N_{2}^{+}X^{-}\)
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
79%
Level 2: 60%+
AIPMT - 2014
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Subtopic: Diazonium Salts: Preparation, Properties & Uses |
77%
Level 2: 60%+
AIPMT - 2013
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