




The correct answer is option (D): 
The reactant is benzyl phenyl ether (Ph–CH₂–O–Ph), with two benzene rings connected by a –CH₂–O– linkage. When treated with HI under heat (Δ), the ether bond breaks. HI protonates the oxygen, and the iodide (I⁻) attacks the benzyl carbon (Ph–CH₂–) due to the stability of the resonance-stabilized benzyl carbocation. This cleaves the Ph–CH₂–O bond, forming Ph–CH₂–I (benzyl iodide) and Ph–OH (phenol).
Comparing with the options:
- Option 1: A = Ph–CH₃, B = Ph–I (Incorrect, doesn’t match Ph–CH₂–I and Ph–OH).
- Option 2: A = Ph–CH₃, B = Ph–OH (Incorrect, A should be Ph–CH₂–I).
- Option 3: A = Ph–CH₂OH, B = Ph–I (Incorrect, neither matches).
- Option 4: A = Ph–CH₂I, B = Ph–OH (Correct, matches the products).
Thus, the correct option is Option 4.
Given below are two statements:
Statement I: Dimethyl ether is completely soluble in water. However, diethyl ether is soluble in water to a very small extent.
Statement II: Sodium metal can be used to dry diethyl ether and not ethyl alcohol.
In the light of the given statements, choose the correct answer from the options given below:
A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is : 
A constant voltage of 50 V is maintained between the points A and B of the circuit shown in the figure. The current through the branch CD of the circuit is :
The current passing through the battery in the given circuit, is: 
Given below are two statements:
Statement I: The primary source of energy in an ecosystem is solar energy.
Statement II: The rate of production of organic matter during photosynthesis in an ecosystem is called net primary productivity (NPP).
In light of the above statements, choose the most appropriate answer from the options given below:
Alcohols, phenols, and ethers are organic compounds that have distinct chemical properties.
Alcohols are characterized by the presence of the hydroxyl (-OH) functional group, which makes them polar and capable of forming hydrogen bonds. They are typically classified as primary, secondary, or tertiary, depending on the number of alkyl groups attached to the carbon atom bearing the hydroxyl group. Alcohols undergo various chemical reactions, including oxidation, dehydration, and esterification.
Phenols are organic compounds that contain an -OH group attached to an aromatic ring. They are weaker acids than carboxylic acids but stronger acids than alcohols due to the resonance stabilization of the phenoxide ion. Phenols undergo various chemical reactions, including electrophilic substitution and oxidation.
Read More: Classification of Alcohol, Phenols and Ethers
Ethers are organic compounds that contain an oxygen atom bonded to two alkyl or aryl groups. They are characterized by their low boiling points and are often used as solvents. Ethers undergo various chemical reactions, including cleavage of the C-O bond and oxidation.
In summary, alcohols, phenols, and ethers have distinct chemical properties due to the presence of the hydroxyl or ether functional group. Understanding these properties is important for understanding their reactivity and potential applications in various fields, including chemistry, biology, and industry.