What is the correct sequence of reagents used for the preparation of m-Nitrobenzoic acid from benzene?
(a)
Mg/ Dry ether
(b)
Br2 / FeBr3
(c)
CO2 ; H3O+
(d)
HNO3 + H2SO4
1.
(a)
(b)
(c)
(d)
2.
(b)
(a)
(c)
(d)
3.
(c)
(b)
(a)
(d)
4.
(d)
(b)
(a)
(c)
The correct sequence of reagents used for the preparation of Phenylacetic acid from benzene are :
| 1. | a= NBS, hv, and heat; b= CH3Cl/Anhyd.AlCl3; C= KMnO4+KOH; d=H3O+ |
| 2. | a= CH3Cl/Anhyd.AlCl3; b= KMnO4+KOH; C= NBS, hv, and heat; d=H3O+ |
| 3. | a= CH3Cl/Anhyd.AlCl3; b= NBS, hv, and heat; C= H3O+; d=KMnO4+KOH |
| 4. | a= CH3Cl/Anhyd.AlCl3; b= NBS, hv, and heat; C= alc.KCN; d=H |
The correct sequence of reagents used to yield p-Nitrobenzaldehyde from benzene is:
| (a) | CH3Cl /Anhyd. AlCl3 |
| (b) | HNO3 /H2SO4 |
| (c) | CS2 / CrO2Cl2 |
| (d) | H3O+ |
| 1. | (a) | (b) | (c) | (d) |
| 2. | (c) | (b) | (a) | (d) |
| 3. | (b) | (a) | (c) | (d) |
| 4. | (a) | (b) | (d) | (c) |
Chemical test(s) to distinguish between the Propanal and Propanone is :
| 1. | Tollen’s test
|
2. | Fehling’s test
|
| 3. | Iodoform test
|
4. | All of these |
Chemical test(s) used to distinguish between Acetophenone and Benzophenone is :
1. Tollen’s test
2. Fehling’s test
3. Iodoform test
4. All of the above
A chemical test to distinguish between Phenol and Benzoic acid is :
1. Tollen’s test
2. Fehling’s test
3. Iodoform test
4. Ferric chloride test
1. Tollens' test
2. Fehling’s test
3. Iodoform test
4. Sodium bicarbonate test.
Chemical test to distinguish between Pentan-2-one and Pentan-3-one is:
1. Tollen’s test
2. Fehling’s test
3. Iodoform test
4. Ferric chloride test
Chemical test(s) to distinguish between Benzaldehyde and Acetophenone is :
1. Tollen’s test
2. Fehling’s test
3. Iodoform test
4. Tollen’s test and Iodoform test
| X | Y | |
| 1. | CrO2Cl2/CCl4 | CH3OH / H+ |
| 2. | KMnO4 | CH3OH / H+ |
| 3. | CrO2Cl2/CCl4 | (CH3CO)2O |
| 4. | KMnO4 | (CH3CO)2O |
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