How many structural isomers of primary alcohols can be formed with the given molecular formula \(\text{C}_5\text{H}_{11}\text{OH}\)?
1. | 5 | 2. | 4 |
3. | 2 | 4. | 3 |
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 correct order of solubility of 1, 2 and 3 small chain alcohol in water is:
1. 3> 2> 1
2. 1> 2> 3
3. 3> 1> 2
4. None of the above
Given is a reaction for your reference:
\(CH_3CH_2CH_2OH \xrightarrow[160\ - \ 180 ^\circ C]{Conc.\ H_2SO_4}\ X\ \xrightarrow{Br_2}\ Y\)
\( Y\ \xrightarrow[2.\ NaNH_2]{1.\ Alc.\ KOH}\ Z\)
The final product Z is:
1. | 2. | ||
3. | 4. | \(CH_3-C\equiv CH\) |
The best method to prepare cyclohexene from cyclohexanol is by using:
1. | conc. HCl + ZnCl2 | 2. | conc. H3PO4 |
3. | HBr | 4. | conc. HCl |
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 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. | ![]() |
Propan-1-ol may be prepared by reaction of propene with -
1. CH3COOH
2. H3BO3
3. B2H6/NaOH-H2O2
4. H2SO4/H2O
The product A in the below mentioned reaction is:
\(\xrightarrow[]{H_{2}O/H^{+}} \ \underset{(major)}{A} \ + \ \underset{(minor)}{B}\)
1. | ![]() |
2. | ![]() |
3. | ![]() |
4. | ![]() |
The formula for allyl alcohol is-
1. CH3-CH=CHOH
2. CH2=CHCH2OH
3. HOCH2CH2CH3
4. None of the above.