Or, you can use the method @gbritton used in this post, like this:
CREATE TABLE #tmp
(col1 VARCHAR(32), col2 INT, col3 INT, col4 INT, col5 INT, col6 INT);
INSERT INTO #tmp VALUES
('CatA',10,2,5,15,16),
('CatB',9,3,4,11,13),
('CatC',20,22,25,15,16);
SELECT
c1.col1,c2.col2
FROM
#tmp
CROSS APPLY
(
VALUES(col1)
) c1(col1)
CROSS APPLY
(
VALUES (col2),(col3),(col4),(col5),(col6)
) c2(col2);
DROP TABLE #tmp;