The Williamson's synthesis reaction among the following is -
1. | ![]() |
2. | ![]() |
3. | \(C_2H_5I + C_2H_5ONa \rightarrow C_2H_5-O-C_2H_5 + NaI\) ![]() |
4. | ![]() |
Which represents Riemer-Tiemann reaction?
(a) | ![]() |
(b) | ![]() |
(c) | ![]() |
(d) | ![]() |
The ionisation constant of phenol is higher than that of ethanol because -
1. Phenoxide ion is bulkier than ethoxide
2. Phenoxide ion is a stronger base than ethoxide
3. Phenoxide ion is stabilised through delocalisation
4. Phenoxide ion is less stable than ethoxide
The boiling point of p-nitrophenol is higher than that of o-nitrophenol because -
1. NO2 group at p-position behaves in a different way from that at o-position.
2. Intramolecular hydrogen bonding exists in p-nitrophenol.
3. There is intermolecular hydrogen bonding in p-nitrophenol.
4. p-Nitrophenol has a higher molecular weight than o-nitrophenol.
An organic compound A reacts with PCl3 to give B. The compound B with sodium metal in the presence of dry ether and gives n-butane. Thus, A and B are:
1. C2H5OH and C2H5Cl
2. C2H5Cl and C2H5ONa
3. C3H7OH and CH3CH2CH2OCl
4. C4H9OH and C4H9OCl
The reaction of with RMgX leads to the formation of
1. RCHOHR
2. RCHOHCH3
3. RCH2CH2OH
4.
Compound that is not an alcohol-
1. CH2=CHCH2OH
2. CH2OHCH2OH
3. C6H5CH2OH
4. C6H5OH
The compound that generate methyl ethyl ketone upon oxidation is -
1. 2-Propanol
2. 1-Butanol
3. 2-Butanol
4. tert-Butyl alcohol
A compound X with molecular formula C3H8O can be oxidised to a compound Y with the molecular formula C3H6O2. X is most likely to be:
1. Primary alcohol
2. Secondary alcohol
3. Aldehyde
4. Ketone
Rectified spirit contains:
1. 75.0 % alcohol 2. 85.5% alcohol
3. 95.6 % alcohol 4. 100.0% alcohol