Order of acidic strength of the following compounds will be:
| A. | B. | \(C_6H_5OH\) | |
| C. | D. |
1. C > D > B > A
2. D > C > B > A
3. A > B > C > D
4. B > A > C > D
The compound that will not form a yellow precipitate on heating with an alkaline solution of iodine is:
1.
2.
3.
4.
n-Propyl alcohol and Isopropyl alcohol can be chemically distinguished by which reagent:
1. PCl5
2. Reduction
3. Oxidation with Potassium dichromate
4. Ozonolysis
When phenol is treated with CHCl3 and NaOH, the product formed is:
1. Benzaldehyde
2. Salicylaldehyde
3. Salicylic acid
4. Benzoic acid
The correct acidic order of the following is:
| (I) | (II) | (III) |
1. I > II > III
2. III > I > II
3. II > III > I
4. I > III > II
Incorrect statement among the following is:
| 1. | \(FeCl_3\) is used in the detection of phenol. |
| 2. | Fehling solution is used in the detection of glucose. |
| 3. | Tollens' reagent is used in the detection of unsaturation. |
| 4. | \(NaHSO_3\) is used in the detection of carbonyl compounds. |
Identify the effective factor in the preparation of an alkene from an alcohol using Al₂O₃.
1. Porosity of Al₂O₃
2. Temperature
3. Concentration
4. Surface area of Al₂O₃
The correct statement among the following is:
| 1. | Any aldehyde gives secondary alcohol on reduction. |
| 2. | The reaction of vegetable oil with H2SO4 gives glycerin. |
| 3. | C2 H5OH and iodine with NaOH give iodoform. |
| 4. | Sucrose in reaction with NaCl gives invert sugar. |
Find the correct reason for the higher boiling point of propanol compared with butane.
1. Butane molecules are held together by strong ionic forces.Alcohols are comparatively more soluble in water than hydrocarbons of comparable molecular masses because:
| 1. | Alcohols form van der waal bonds with water while hydrocarbons do not |
| 2. | Alcohols form covalent bonds with water while hydrocarbons do not |
| 3. | Alcohols form ionic bonds with water while hydrocarbons do not |
| 4. | Alcohols form H-bonds with water while hydrocarbons do not |