Welcome to the community, @mridwan_21! Could you also let us know the question type you have planned for Q1 and Q2? In addition, what option do you intend to select in Q1 where answer 5 is always displayed in Q2? These details should be helpful for the community to help you solve your issue.
if in Q1 choices 1 and 2 are chosen, then in Q2 choices 1,2, and 5 will appear. if in Q1 you choose 1,2,3 then in Q2 choices 1,2,3, and 5 will appear. Q1 is selected regardless of answer, choice 5 will still appear in Q2