o que esta errado no codigo??

unit uclasse;

interface
  uses
    SysUtils, Classes, DB, ADODB, Forms;
  type
    TBanco = class(TADOConnection)

    private

    public

      procedure pconectar;
      procedure pdesconectar;
      function  fconsulta(csql: string): TADOQuery;


  end;


implementation

procedure TBanco.pconectar;
begin
  ConnectionString:= ´Provider=MSDASQL.1;Persist Security Info=False;Data Source=teste5´;
  LoginPrompt := False;
  Connected:= True;
end;

procedure TBanco.pdesconectar;
begin

end;

function  TBanco.fconsulta(csql: string): TADOQuery;
var
  Q: TADOQuery;
begin
  Q:= TADOQuery.Create(application);
  Q.Connection:= self;
  Q.Close;
  Q.SQL.Clear;
  Q.SQL.Text:= csql;
  Q.Open;
  fconsulta:= Q;

end;
end.

unit uteste;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, uclasse, StdCtrls, DB, ExtCtrls, DBCtrls, Grids, DBGrids, ADODB;

type
  TForm1 = class(TForm)
    Button1: TButton;
    DBGrid1: TDBGrid;
    DBNavigator1: TDBNavigator;
    DataSource1: TDataSource;
    Button2: TButton;
    ADOTable1: TADOTable;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  x: TBanco;
begin
  x:= TBanco.Create(application);
  x.pconectar;
  ADOtable1.Connection:= x;
  ADOtable1.TableName:= ´teste´;
  ADOtable1.Active:= true;;
end;

procedure TForm1.Button2Click(Sender: TObject);
var
  Q: TBanco;
begin
  Q:= TBanco.Create(application);
  DataSource1.DataSet:= q.fconsulta(´select * from teste;´);

end;

end.