While separating a mixture of ortho and para nitrophenols by steam distillation, name the isomer which will be steam volatile. Give reason.
While separating a mixture of ortho and para nitrophenols by steam distillation, name the isomer which will be steam volatile. Give reason.
Solution and Explanation
Intramolecular H-bonding is present in o-nitrophenol.In p-nitrophenol, the molecules are strongly associated due to the presence of intermolecular bonding. Hence,o-nitrophenol is steam volatile.
Top Questions on Alcohols, Phenols And Ethers
- Write chemical equations of the following reactions:
(i) Phenol is treated with conc. HNO3.
(ii) Propene is treated with B2H6 followed by oxidation by H2O2/OH−.
(iii) Sodium t-butoxide is treated with CH3Cl.- CBSE CLASS XII - 2025
- Chemistry
- Alcohols, Phenols And Ethers
- Assertion (A): The boiling point of ethanol is higher than that of methoxymethane.
Reason (R): There is intramolecular hydrogen bonding in ethanol.- CBSE CLASS XII - 2025
- Chemistry
- Alcohols, Phenols And Ethers
Write the IUPAC name of the product formed in the Reimer-Tiemann reaction.
- CBSE CLASS XII - 2025
- Chemistry
- Alcohols, Phenols And Ethers
Arrange the following compounds in increasing order of their boiling points:
- CBSE CLASS XII - 2025
- Chemistry
- Alcohols, Phenols And Ethers
- Give a simple chemical test to distinguish between butan-1-ol and butan-2-ol.
- CBSE CLASS XII - 2025
- Chemistry
- Alcohols, Phenols And Ethers
Questions Asked in CBSE CLASS XII exam
- You are required to design an air-filled solenoid of inductance 0.016 H having a length 0.81 m and radius 0.02 m. The number of turns in the solenoid should be:
- CBSE CLASS XII - 2025
- Electromagnetic induction
- Given \[ A = \begin{bmatrix} -4 & 4 & 4 \\ -7 & 1 & 3 \\ 5 & -3 & -1 \end{bmatrix}, \quad B = \begin{bmatrix} 1 & -1 & 1 \\ 1 & -2 & -2 \\ 2 & 1 & 3 \end{bmatrix} \] find \( AB \). Hence, solve the system of linear equations: \[ x - y + z = 4, \] \[ x - 2y - 2z = 9, \] \[ 2x + y + 3z = 1. \]
- A vector \( \mathbf{a} \) makes equal angles with all the three axes. If the magnitude of the vector is \( 5\sqrt{3} \) units, then find \( \mathbf{a} \).
- Solve the following linear programming problem graphically: \[ \text{Minimise } Z = 2x + y \] subject to the constraints: \[ 3x + y \geq 9, \] \[ x + y \geq 7, \] \[ x + 2y \geq 8, \] \[ x, y \geq 0. \]
- CBSE CLASS XII - 2025
- Linear Programming Problem
Two batteries of emf's \(3V \& 6V\) and internal resistances 0.2 Ω \(\&\) 0.4 Ω are connected in parallel. This combination is connected to a 4 Ω resistor. Find:
(i) the equivalent emf of the combination
(ii) the equivalent internal resistance of the combination
(iii) the current drawn from the combination- CBSE CLASS XII - 2025
- Electrical Circuits
