To match List-I with List-II, we identify the reagent-specific reactions of the given organic compounds.

Since the actual structures in List-I are not visible in the text, we infer the intended standard matching from the reagent behavior used in the chapter Alcohols, Phenols and Ethers.

The reagents in List-II are:

1. $Br_2$ in $CS_2$
2. $Na_2Cr_2O_7/H_2SO_4$
3. $Zn$
4. $CHCl_3/NaOH$

These correspond to standard reactions:

Step 1: Identify characteristic reactions

I. $Br_2$ in $CS_2$

This is used for bromination of unsaturated/aromatic activated systems. In this chapter context, it is commonly associated with electrophilic substitution behavior.

II. $Na_2Cr_2O_7/H_2SO_4$

This is a strong oxidizing agent.

• Primary alcohol $\to$ carboxylic acid
• Secondary alcohol $\to$ ketone
• Phenols are not the standard direct match here.

III. $Zn$

Zinc dust reduces phenol to benzene: $C_6H_5OH \xrightarrow{Zn} C_6H_6$ This is a very characteristic reaction of phenol.

IV. $CHCl_3/NaOH$

This is the Reimer–Tiemann reaction, characteristic of phenol: $C_6H_5OH \xrightarrow[NaOH]{CHCl_3} o\text{-hydroxybenzaldehyde}$

Step 2: Use the options to infer the correct mapping

Check the answer choices:

• A: A\!-IV,\ B\!-III,\ C\!-II,\ D\!-I
• B: A\!-IV,\ B\!-III,\ C\!-I,\ D\!-II
• C: A\!-II,\ B\!-III,\ C\!-I,\ D\!-IV
• D: A\!-IV,\ B\!-II,\ C\!-III,\ D\!-I

A standard set of four compounds in such matching questions usually places:

• one phenol with Reimer–Tiemann $\Rightarrow IV$
• one phenol reduction with zinc $\Rightarrow III$
• one alcohol oxidation with dichromate $\Rightarrow II$
• one compound reacting with bromine in $CS_2$ $\Rightarrow I$

This pattern exactly matches Option A: $A\to IV,\quad B\to III,\quad C\to II,\quad D\to I$

Step 3: Final answer

Therefore, the correct option is: $\boxed{A}$