`X overset("Dil. "H_(2)SO_(4))underset("Boil")rarr Yoverset("Zndust")underset(Delta)larrQ` where 1 mole Y on ozonolysis yields three moles of ethane - 1, 2 - dial, X and Q respectively are

Options

A. Napthalene, Phenol
B. Benzene sulphonic acid, Nitrobenzene
C. Benzene sulphonic acid , Phenol
D. Phenol, Toluene

Explanation

To solve the problem step-by-step, we need to analyze the information given and deduce the identities of compounds X and Q based on the reactions described.

### Step 1: Understanding the Reaction of X
The reaction given is:
\[ X \overset{\text{Dil. } H_2SO_4}{\underset{\text{Boil}}{\rightarrow}} Y \]

This indicates that compound X is treated with dilute sulfuric acid and then boiled to produce compound Y.

### Step 2: Analyzing Compound Y
We know that 1 mole of Y, upon ozonolysis, yields three moles of ethane-1,2-diol (which has the structure HO-CH2-CHOH-CH2-OH). This suggests that Y must contain a structure that can produce three moles of this diol upon cleavage.

### Step 3: Identifying Compound Y
Since ozonolysis typically cleaves double bonds, and we are producing three moles of ethane-1,2-diol, we can infer that Y is likely a compound with multiple double bonds.

Given that the ozonolysis of Y yields three moles of ethane-1,2-diol, Y must be a compound that can be represented as a triene (a compound with three double bonds). The simplest structure that fits this description is benzene (C6H6) because it can undergo ozonolysis to yield the required products.

### Step 4: Identifying Compound Q
The reaction of Q is:
\[ Y \overset{\text{Zn dust}}{\underset{\Delta}{\leftarrow}} Q \]

Since we have determined that Y is benzene, we need to find a compound Q that can be converted to benzene by reduction with zinc dust.

A common precursor to benzene that can be reduced to yield benzene is phenol (C6H5OH). Therefore, we conclude that Q is phenol.

### Step 5: Identifying Compound X
Now, we need to identify X, which is a compound that, when treated with dilute sulfuric acid and boiled, yields benzene. The compound that fits this description is benzene sulfonic acid (C6H5SO3H). When benzene sulfonic acid is treated with dilute sulfuric acid and boiled, it undergoes desulfonation to yield benzene.

### Conclusion
Thus, we can summarize our findings:
- **X** is benzene sulfonic acid (C6H5SO3H).
- **Y** is benzene (C6H6).
- **Q** is phenol (C6H5OH).

### Final Answer
- X = Benzene sulfonic acid
- Q = Phenol