Q. No.The compound(s) among the following that is/are not typically synthesized using the Sandmeyer reaction:
(a) Chlorobenzene
(b) Bromobenzene
(c) Iodobenzene
(d) Fluorobenzene
Choose the correct option:
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
(a) Chlorobenzene
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Reduction of nitrobenzene by which of the following reagent gives aniline?
(a) Sn/HCl
(b) Fe/HCl
(c) H2-pd
(d) Sn/NH4OH
Choose the correct option
1. (a, b, c)
2. (b, c, d)
3. (a, c, d)
4. (a, b, d)
Which of the following species are involved in the carbylamine test?
a. R—NC
b. CHCl3
c. COCl2
d. NaNO2 + HCl
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
The reagents that can be used to convert benzene diazonium chloride to benzene are
a. SnCl2 / HCI
b. CH3CH2OH
c. H3PO2
d. LiAlH4
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
The product of the following reaction is ............
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Arenium ion involved in the bromination of aniline is ................
Choose the correct option
1. (a, b, c)
2. (b, c, d)
3. (a, c, d)
4. (a, b, d)
Under which of the following reaction conditions, aniline gives p-nitro derivative as the major product?
| a. | Acetyl chloride/pyridine followed by reaction with conc. H2SO4 + conc.HNO3 |
| b. | Acetic anhydride/pyridine followed by conc. H2SO4 + conc. HNO3 |
| c. | Dil. HCI followed by reaction with conc. H2SO4 + conc. HNO3 |
| d. | Reaction with conc. HNO3 + conc. H2SO4 |
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Match the reactions given in Column I with the statements given in Column II.
| Column I | Column II |
| A. Ammonolysis | 1. Amine with a lesser number of carbon atoms |
| B. Gabriel phthalimide synthesis | 2. Detection test for primary amines. |
| C. Hofmann bromamide reaction | 3. Reaction of phthalimide with KOH and R—X |
| D. Carbylamine reaction | 4. Reaction of alkyl halides with NH3 |
Codes
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 1 | 4 | 2 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 3 | 1 | 2 |
Match the compounds given in Column I with the items given in Column II.
| Column I | Column II |
| A. Benzene sulphonyl chloride | 1. Zwitter ion |
| B. Sulphanilic acid | 2. Hinsberg reagent |
| C. Alkyl diazonium salts | 3. Dyes |
| D. Aryl diazonium salts | 4. Conversion to alcohols |
Codes
| A | B | C | D | |
| 1. | 2 | 1 | 4 | 3 |
| 2. | 3 | 1 | 4 | 2 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 3 | 2 | 1 |
| Assertion (A): | Acylation of amines gives a monosubstituted product whereas alkylation of amines gives a polysubstituted product. |
| Reason (R): | Acyl group sterically hinders the approach of further acyl groups. |
| 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. |
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