Serotonin is a famous tranquilizer if it contains 'X' number of lp of electrons and 'Y' number of `pi-` bonds. The sum of `X+Y` is equal to

Answer

To solve the problem regarding the structure of serotonin and to find the values of X (the number of lone pairs of electrons) and Y (the number of π bonds), we will follow these steps:

### Step 1: Draw the Structure of Serotonin
First, we need to draw the molecular structure of serotonin. Serotonin is a compound that contains carbon, hydrogen, nitrogen, and oxygen.

### Step 2: Identify the π Bonds
In the structure of serotonin, look for double bonds, as each double bond contains one π bond. Count the number of double bonds:
- There are two double bonds in the structure of serotonin.

Thus, the number of π bonds (Y) is:
- Y = 4 (two double bonds contribute two π bonds each).

### Step 3: Identify the Lone Pairs of Electrons
Next, we need to identify the lone pairs of electrons present in the molecule:
- Nitrogen (N) typically has one lone pair.
- Oxygen (O) typically has two lone pairs.

In serotonin:
- There is 1 lone pair from nitrogen.
- There are 2 lone pairs from oxygen.

Thus, the total number of lone pairs of electrons (X) is:
- X = 3 (1 from nitrogen + 2 from oxygen).

### Step 4: Calculate X + Y
Now, we can find the sum of X and Y:
- X + Y = 3 + 4 = 7.

### Final Answer
The sum of X and Y is equal to 7.

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