Assertion : Multiple bond between two bonded atoms can have more than three bonds.
Reason : Multiple bond between two bonded atoms can not have more than two `pi`-bonds.

Options

A. If assertion is true but the reason is false
B. If assertion is false but reason is true
C. IF both assertion and reason are true and the reason is the correct explanation of assertion
D. If both assertion and reason are true but reason is not the correct explanation of assertion

Answer

To solve the given question, we will analyze the assertion and the reason step by step.

### Step 1: Analyze the Assertion
**Assertion:** Multiple bonds between two bonded atoms can have more than three bonds.

- In chemistry, when we talk about multiple bonds, we refer to the bonds formed between two atoms that include sigma (σ) and pi (π) bonds.
- The maximum number of bonds that can exist between two atoms is five. This includes:
- 1 sigma bond
- 2 pi bonds
- 2 delta bonds
- Therefore, the assertion is **true** because it is possible for two atoms to form more than three bonds (up to five).

### Step 2: Analyze the Reason
**Reason:** Multiple bonds between two bonded atoms cannot have more than two pi bonds.

- In the context of multiple bonding:
- A single bond consists of one sigma bond.
- A double bond consists of one sigma bond and one pi bond.
- A triple bond consists of one sigma bond and two pi bonds.
- Beyond a triple bond, additional bonds can be delta bonds.
- The statement in the reason is also **true** because, in a typical bonding scenario, two bonded atoms can indeed form a maximum of two pi bonds (as seen in a triple bond).

### Step 3: Determine the Relationship
- While both the assertion and reason are true, the reason does not correctly explain the assertion.
- The assertion states that multiple bonds can exceed three bonds, while the reason limits the explanation to the number of pi bonds. The existence of delta bonds allows for the total number of bonds to exceed three.

### Conclusion
- Therefore, the correct option is: **Both assertion and reason are true, but the reason is not the correct explanation of the assertion.**

### Final Answer
The correct option is **Option 4**: Both assertion and reason are true, but the reason is not the correct explanation of the assertion.

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