The below code throws an exception when executing this line (i.e. something.Add(name)).

I want to catch the actual exception when executing this. I mean I don't want to use catch(Exception ex) instead of that I want to know what is the correct exception thrown here.

try
{
  dynamic name= "test";
  var something = new List<decimal>();
  something.Add(name);
}
catch(Exception ex)
{
  throw ex;
}

Thanks in advance.