Lucas reagent is-
1. conc. HCl and anhy. ZnCl2
2. conc. HNO3 and anhy. ZnCl2
3. conc. HCl and hydrous ZnCl2
4. conc. HNO3 and hydrous ZnCl2
The general molecular formula, which represents the homologous series of alkanols is
1. CnH2nO2
2. CnH2nO
3. CnH2n+1O
4. CnH2n+2O
. This reduction cannot be done by:
1.
2. Na + alcohol
3.
4. All of the above
What mass of isobutylene is obtained from 37 g of tertiary butyl alcohol by heating with 20% H2SO4 at 363 K, if the yield is 65%?
1. 16 g
2. 18.2 g
3. 20 g
4. 22 g
Which of the following reaction is used for preparation of glycol industrially?
1.
2.
3.
4. none of the above
The number of primary alcohol isomers of C5H11OH is -
1. | 5 | 2. | 4 |
3. | 2 | 4. | 3 |
Phenol is less soluble in water. It is due to-
1. Non-polar nature of phenol
2. Acidic nature of -OH group
3. Non-polar hydrocarbon part in it
4. None of the above
The decreasing order of boiling points of \(1^\circ\), \(2^\circ\), and \(3^\circ\) alcohol is-
1. \(1^\circ\)> \(2^\circ\)> \(3^\circ\)
2. \(3^\circ\)> \(2^\circ\)> \(1^\circ\)
3. \(2^\circ\) > \(1^\circ\) > \(3^\circ\)
4. None of the above
The boiling points of thio-ethers are .... than those of ether.
1. lesser
2. equal
3. higher
4. none of these
The most effective reagent used to converts but-2-enal to but-2-enol is-
1. KMnO4
2. NaBH4
3. H2/Pt
4. K2Cr2O7/H2SO4