Q. No.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 the above
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
Which chemical test is used to distinguish between benzoic acid and ethyl benzoate?
1. Tollens' test
2. Fehling’s test
3. Iodoform test
4. Sodium bicarbonate test.
Chemical tests 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
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
| X | Y | |
| 1. | CrO2Cl2/CCl4 | CH3OH / H+ |
| 2. | KMnO4 | CH3OH / H+ |
| 3. | CrO2Cl2/CCl4 | CH3CO2O |
| 4. | KMnO4 | CH3CO2O |
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 |
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