In which of the following entropy change is +Ve

i) If gas converted in to solid entropy decreases ΔS=−veii) Cgraphite→CDiamond Diamond has more regular geometry          than graphite so entropy decreases∴ΔS=−veiii) AgNO3(s)→AgNO3(aq)due to hydration and ionization randomness  increases ΔS=+veiv) No. of moles of gaseous products decreases so does entropy  ΔS=−ve