Match the column :-
`{:(A,C_"(S,graphite)"+O_(2(g))toCO_(2(g)),P,DeltaH_"Combustion"^(@),),(B,CO_(g)+1//2O_(2(g))toCO_(2(g)),Q,DeltaH_"sublimation"^(@),),(C,CH_(4(g))toC_(g)+4H_(g),R,DeltaH_"formation"^(@),),(D,C_(s)toC_(g),S,DeltaH_"atomisation"^(@),):}`

Options

A. `AtoR,Bto,S,CtoP,DtoQ`
B. `AtoR,BtoP,CtoQ,DtoS`
C. `AtoP,BtoS,CtoQ,DtoR`
D. `AtoR,BtoP,CtoS,DtoQ`

Answer

To solve the matching question, we will analyze each reaction in column A and match it with the appropriate enthalpy change from column B.

### Step-by-Step Solution:

1. **Identify Reaction A**:
- The reaction is \( C_{(s)} + O_{2(g)} \rightarrow CO_{2(g)} \).
- This reaction represents the formation of carbon dioxide from its elements in their standard states.
- **Match**: This corresponds to the standard enthalpy of formation, denoted as \( \Delta H_{formation} \) (R).

2. **Identify Reaction B**:
- The reaction is \( CO_{(g)} + \frac{1}{2} O_{2(g)} \rightarrow CO_{2(g)} \).
- This reaction represents the combustion of carbon monoxide.
- **Match**: This corresponds to the standard enthalpy of combustion, denoted as \( \Delta H_{combustion} \) (P).

3. **Identify Reaction C**:
- The reaction is \( CH_{4(g)} \rightarrow C_{(g)} + 4H_{(g)} \).
- This reaction involves the dissociation of methane into its gaseous atoms.
- **Match**: This corresponds to the standard enthalpy of atomization, denoted as \( \Delta H_{atomisation} \) (S).

4. **Identify Reaction D**:
- The reaction is \( C_{(s)} \rightarrow C_{(g)} \).
- This reaction represents the sublimation of solid carbon to gaseous carbon.
- **Match**: This corresponds to the standard enthalpy of sublimation, denoted as \( \Delta H_{sublimation} \) (Q).

### Final Matching:
- A → R (Standard Enthalpy of Formation)
- B → P (Standard Enthalpy of Combustion)
- C → S (Standard Enthalpy of Atomization)
- D → Q (Standard Enthalpy of Sublimation)

### Summary of Matches:
- A - R
- B - P
- C - S
- D - Q