IF Sentence in SQL Server

-- Example about IF sentence using AdventureWork Database

DECLARE @SeleccionQuery INT = 1;

 IF(@SeleccionQuery = 1 OR @SeleccionQuery = 3) AND NOT @SeleccionQuery IS NULL
 BEGIN
     SELECT
         p.ProductID,
         p.Name,
         p.Color
     FROM Production.Product AS p
     WHERE p.Color = 'Red'
     ORDER BY p.Name
 END
 ELSE
 BEGIN
     SELECT
         p.ProductID,
         p.Name,
         p.Color
     FROM Production.Product AS p
     WHERE p.Color = 'Black'
     ORDER BY
         p.Name
 END