1. ► Leaf nodes have no children

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

3. ► In a tree, all nodes are connected

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

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

6. ► STL has no tree container

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

8. ► All binary search trees are balanced

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

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

11. ► Tree traversal is a linear operation

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