Mark out the coreect statemnet (s).

Options

A. For an exothermic reaction, if `Q` value is` +12.56MeV` and the`KE` of incident particcle is `2.44 MeV`, then the totla `KE` of products of reaction is `15.00 MeV`.
B. For an exothermic reaction, if `Q` value is `+12.56MeV` and the KE of incident particcle is `2.44 MeV`, then the totla `KE` of products of reaction is `12.56 MeV`.
C. For an endothermic reaction, if we give the energy equal `|Q|` value of reaction, then the reaction will be carried out.
D. For an exothermic reaction, the BE per nucleon of products should be greater than the BE per nucleon of reactants.

Explanation

To solve the question regarding the correct statements about exothermic and endothermic reactions, we can break down the explanation into clear steps:

### Step 1: Understanding Exothermic Reactions
- An exothermic reaction is one where energy is released to the surroundings. This means that the total energy of the products is lower than that of the reactants.
- The relationship can be expressed as:
\[ KE_{\text{incident}} + Q = KE_{\text{products}} \]
where \( KE \) is the kinetic energy and \( Q \) is the energy released (the Q value).

### Step 2: Analyzing the Given Q Value
- In the problem, it is stated that \( Q \) is +12.5 MeV. This indicates that the reaction is exothermic.
- The total energy of the products can be calculated as:
\[ KE_{\text{products}} = KE_{\text{incident}} + Q \]
If \( KE_{\text{incident}} \) is 2.44 MeV, then:
\[ KE_{\text{products}} = 2.44 \text{ MeV} + 12.5 \text{ MeV} = 15 \text{ MeV} \]

### Step 3: Understanding Endothermic Reactions
- An endothermic reaction requires energy to proceed. The energy input must be greater than the Q value for the reaction to occur.
- The condition for an endothermic reaction can be expressed as:
\[ KE_{\text{incident}} + Q > 0 \]
This means that the energy provided must exceed the energy required for the reaction.

### Step 4: Binding Energy Considerations
- For exothermic reactions, the binding energy per nucleon of the products must be greater than that of the reactants. This indicates that the products are more stable.
- The graph of binding energy versus the number of nucleons shows that stable nuclei have higher binding energy per nucleon.

### Conclusion
- Based on the analysis, the correct statements regarding exothermic and endothermic reactions are:
- The binding energy per nucleon of the products is greater than that of the reactants in exothermic reactions.
- For endothermic reactions, the energy provided must be greater than the Q value for the reaction to proceed.

### Final Answer
- The correct statements are:
- Option A: The binding energy per nucleon of products is greater than that of reactants in exothermic reactions.
- Option B: For endothermic reactions, energy must be greater than Q for the reaction to occur.