Select the correct option based on statements below:
Assertion (A): | The solubility of alcohols in water decreases with an increase in the number of carbon atoms. |
Reason (R): | The non-polar alkyl group or the hydrophobic portion supports the solubility of alcohol. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Select the correct option based on statements below:
Assertion (A): | Phenol does not react with NaHCO3 but 2,4,6-trinitrophenol does react with the evolution of CO2 |
Reason (R): | 2,4,6-trinitrophenol is a stronger acid than carbolic acid. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
Select the correct option based on statements below:
Assertion (A): | Picric acid is more acidic than formic acid. |
Reason (R): | Picric acid has three -COOH groups whereas formic acid has one -COOH group. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Select the correct option based on statements below:
Assertion (A): | -OH, -OCH3 groups are o, p-directing. |
Reason (R): | Ring is activated by the resonance effect of -OH, -OCH3 groups. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Amongst the following, the alcohol that reacts with conc. HCl /anhydrous ZnCl2 to form alkyl halide at room temperature, will be
1.
2.
3.
4.
Anisole on reaction with HI gives:
1. | ![]() |
2. | ![]() |
3. | ![]() |
4. | ![]() |
1. | sec-Butyl alcohol | 2. | tert-Butyl alcohol |
3. | iso-Butyl alcohol | 4. | iso-Propyl alcohol |
Cyclohexanol gives best yield of cyclohexene with -
1.
2. conc.HCl
3. conc.HBr
4. All of the above
When benzenediazonium chloride is treated with water, the compound formed is :
(1)
(2)
(3)
(4)
Which of the following substituted phenols is the strongest acid?
1. | ![]() ![]() |
2. | ![]() ![]() |
3. | ![]() ![]() |
4. | ![]() ![]() |