2The dynamic equilibrium in irreversible reaction:aNever establishesbEstablishes after completion of reactioncEstablishes very soondEstablishes before completion of reactionShow answer
3The reactions in which products can recombine to form reactants is called:aIrreversible reactionsbReversible reactionscDirect reactionsdIndirect reactionsShow answer
4A reverse reaction is that:aWhich proceed from left to rightbIn which reactants react to form productscWhich slow down graduallydWhich speed up graduallyShow answer
5________ reaction is irreversible:aN₂ + 3H₂ → 2NH₃bH₂ + I₂ → 2HIc2H₂ + O₂ → 2H₂OdN₂ + O₂ → 2NOShow answer
6When a system is in equilibrium state or in dynamic equilibrium state:aReactants and product are equalbForward reactions stopcReverse reactions stopdForward reaction rate and reverse reaction rate becomes equalShow answer
8A complete reaction is one in which:aAll the reactants convert into productsbAll the reactants do not convert into productscHalf reactants convert into productsdOnly 10% reactants convert into productsShow answer
9At dynamic equilibrium:aReaction stops to proceedbAmounts of reactants and products are equalcRate of forward and reverse reaction are equaldReaction can no longer be reversedShow answer
10For which reaction kₑ is the rate constant?aForward reactionbBackward reactioncUpward reactiondDownward reactionShow answer
11The substances formed during the chemical reaction are called:aProductsbReactantscRadicalsdElementShow answer
12Such reactions which continue in both directions are called:aIrreversiblebReversiblecNonreactivedDynamicShow answer
14In a chemical reaction, the substance that combine are called:aReactantsbProductscEquilibriumdNumeratorShow answer
