remove the duplicate objects in list of objects without using any looping statements

I am trying remove the duplicate objects in list of objects based on the ID prpoerty
List with Duplicate entry

[
    {
        "Id": 2,
        "Question": "skill profile",
        "Answer": "answer2"
    },
    {
        "Id": 6,
        "Question": "skill profile",
        "Answer": "skill profile"
    },
    {
        "Id": 7,
        "Question": "skill profile",
        "Answer": "answer7"
    },
    {
        "Id": 6,
        "Question": "skill profile",
        "Answer": "skill profile"
    },
    {
        "Id": 8,
        "Question": "question8",
        "Answer": "skill profile"
    }
]

list.GroupBy(x => x.Id).Select(d => d.Distinct()).ToList();

Expected Output:

[
{
    "Id": 2,
    "Question": "skill profile",
    "Answer": "answer2"
},
{
    "Id": 6,
    "Question": "skill profile",
    "Answer": "skill profile"
},
{
    "Id": 7,
    "Question": "skill profile",
    "Answer": "answer7"
},
{
    "Id": 8,
    "Question": "question8",
    "Answer": "skill profile"
}

]

I tried the group by option but it didn't worked
Please anyone help me with this

try this:

var result = list.GroupBy(x => x.Id).Select(x => x.First()).ToList();

If you are using .NET 6 or above, you can use DistinctBy

var result =  list.DistinctBy(i => i.Id).ToList();