1. ► In a tree, all nodes are connected

2. ► Insert and delete in self-balancing trees happen in linear time

3. ► Tree traversal is a linear operation

4. ► Which of the traversals in binary search tree gives sorted list

5. ► Leaf nodes have no children

6. ► No node in a binary tree has more than 2 children

7. ► All binary search trees are balanced

8. ► Node values in a binary search tree are ordered

9. ► Search in an unbalanced tree always has O(lg(n)) complexity

10. ► Insertion is O(n) operation in a tree

11. ► STL has no tree container

12. ► In a post-order traversal, root nodes comes at the last