`{:(,"Column-I(Reaction)",,"Column-II(Product)"),((A),"Chloroform reacts with "HNO_(3)" acid to form an insecticide",(p),"gammaxene"),((B),"Silver acetate gets converted into methyl bromide on reaction with "Br_(2)" in "C Cl_(4),(r),"Diphenyl trichloro ethane"),((C),"Chlorobenzene in the presence of conc." H_(2)SO_(4)" reacts with trichloro acetaldehyde",(r),"Chloropicrin"),((D),"Benzene react with "Cl_(2)" in presence of sunlight.",(s),"Compound containing Oxygen"),(,,(t),"Borodine Hunsdiecker reaction"):}`

Answer

To solve the matching question between the reactions in Column-I and the products in Column-II, we will analyze each reaction step by step.

### Step-by-Step Solution:

1. **Reaction A: Chloroform reacts with HNO3 to form an insecticide.**
- Chloroform (CCl3H) reacts with nitric acid (HNO3).
- The reaction leads to the formation of chloropicrin (CCl3NO2) by the removal of water.
- **Match:** A → R (Chloropicrin)

2. **Reaction B: Silver acetate gets converted into methyl bromide on reaction with Br2 in CCl4.**
- Silver acetate (C2H3O2Ag) reacts with bromine (Br2) in carbon tetrachloride (CCl4).
- The reaction involves a radical mechanism where the acetate group is replaced by a bromine atom, forming methyl bromide (CH3Br).
- This reaction is known as the Borodin-Hunsdecker reaction.
- **Match:** B → T (Borodin-Hunsdecker reaction)

3. **Reaction C: Chlorobenzene in the presence of conc. H2SO4 reacts with trichloroacetaldehyde.**
- Chlorobenzene reacts with trichloroacetaldehyde (CCl3CHO) in the presence of concentrated sulfuric acid (H2SO4).
- The reaction involves the formation of chloropicrin (CCl3NO2) through dehydration.
- **Match:** C → S (Compound containing Oxygen)

4. **Reaction D: Benzene reacts with Cl2 in the presence of sunlight.**
- Benzene (C6H6) reacts with chlorine (Cl2) in the presence of sunlight.
- This reaction leads to the formation of hexachlorocyclohexane (gamma-xene).
- **Match:** D → P (Gamma-xene)

### Final Matches:
- A → R (Chloropicrin)
- B → T (Borodin-Hunsdecker reaction)
- C → S (Compound containing Oxygen)
- D → P (Gamma-xene)