the question is like this!

(b) 7 p2 pm p3 p3m1 p31m A pg cm p2mm p6 p6mm p2mg p2gg c2mm p4 p4mm pagm What is the highest order of rotation? None Is reflection present? 2-fold Is reflection present? 3-fold Is reflection present? 4-fold Is reflection present? 6-fold Is reflection present? yes no yes no yes no yes no yes no Is glide- reflection present? Is there glide reflection in an axis which is not a reflection axis? Do reflections occur in two directions? Is glide. reflection present? Are all centres of rotation on reflection axes Do reflections occur in axes which intersect at 45? yes no yes no yes no yes no yes no yes no Are all centres of rotation on reflection axes? yes no cm pg p4 p6 pm 3 p1|p2mmc2mm p2mgp2g9p2 978 2 p3m1p31m 15 14 p3 13 p4mm p4gm 11 12 p6mm 17 5 10 16 (b) 7 p2 pm p3 p3m1 p31m A pg cm p2mm p6 p6mm p2mg p2gg c2mm p4 p4mm pagm What is the highest order of rotation? None Is reflection present? 2-fold Is reflection present? 3-fold Is reflection present? 4-fold Is reflection present? 6-fold Is reflection present? yes no yes no yes no yes no yes no Is glide- reflection present? Is there glide reflection in an axis which is not a reflection axis? Do reflections occur in two directions? Is glide. reflection present? Are all centres of rotation on reflection axes Do reflections occur in axes which intersect at 45? yes no yes no yes no yes no yes no yes no Are all centres of rotation on reflection axes? yes no cm pg p4 p6 pm 3 p1|p2mmc2mm p2mgp2g9p2 978 2 p3m1p31m 15 14 p3 13 p4mm p4gm 11 12 p6mm 17 5 10 16