Please tell how second and fourth options are correct I will approve you

Bro I am not able to understand first point . For second point substentially means in considerable amount with respect to time , it is possible in every irreversible process where heat change is sudden . For third point , destroying entropy(as per my understanding) means ∆s is (-) it is possible if no. of gaseous particles in product are less as compared to reactant side. For fourth point , entropy is a state func. hence considerable change in it during reversible process is 0. Please do approve my answer for first option i am searching and consulting to my faculties by tomorrow

Approved