Which represents Riemer-Tiemann reaction?
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
Compound that is not an alcohol-
1. CH2=CHCH2OH
2. CH2OHCH2OH
3. C6H5CH2OH
4. C6H5OH
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.
The compound that generate methyl ethyl ketone upon oxidation is -
1. 2-Propanol
2. 1-Butanol
3. 2-Butanol
4. tert-Butyl alcohol
Rectified spirit contains:
1. 75.0 % alcohol 2. 85.5% alcohol
3. 95.6 % alcohol 4. 100.0% alcohol
The reaction of with RMgX leads to the formation of
1. RCHOHR
2. RCHOHCH3
3. RCH2CH2OH
4.
Increasing order of acidic strength of
p-Methoxy phenol (I),
p-Methyl phenol (II)
p-Nitrophenol (III)
is -
1. III, I, II
2. II, I, III
3. III, II, I
4. I, II, III
Ethers are not distilled to dryness for fear of explosion. This is due to formation of:
1. oxides
2. alcohol
3. ketones
4. peroxides
In the following reaction,
The major products A and C are respectively:
A | C | |
1. | ||
2. | ||
3. | ||
4. |