In Questions fiLl in the Blanks $\text { The largest value of } n \text { for which } K _ { 6 , n } \text { is planar is }$

Q81: fill in the blanks.<br>-There are _ non-isomorphic

Q109: Find the vertex-chromatic number, the edge-chromatic

Q110: In questions fill in the blanks.1113:1156<br>-The

Q111: In questions fill in the blanks.1113:1156<br>-

Q112: In questions fill in the blanks.1113:1156<br>-There are

Q113: In questions fill in the blanks.1113:1156<br>-

Q116: Find the vertex-chromatic number, the edge-chromatic

Q117: Draw the undirected graph with adjacency

Q118: Are these two digraphs isomorphic? <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5530/.jpg"

Q119: In questions fill in the blanks.1113:1156<br>-The