If helium is introduced in a reactor containing O₂, SO₂ and SO₃ at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO₃ (as per Le Chatlier principle) Changes unpredictably Remains unaltered Increases Decreases TRUE ANSWER : ? YOUR ANSWER : ?
The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order. Second First Zero None of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is the most suitable for very high pressure gas phase reaction? Fluidised bed reactor Batch reactor Tubular flow reactor Stirred tank reactor TRUE ANSWER : ? YOUR ANSWER : ?
From among the following, choose one which is not an exothermic process. Ammonia synthesis Oxidation of sulphur Catalytic cracking Methanol synthesis TRUE ANSWER : ? YOUR ANSWER : ?
The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the __________ energy. Threshold Activation Binding Potential TRUE ANSWER : ? YOUR ANSWER : ?
The enzyme which can catalyse the conversion of glucose to ethyl alcohol is Invertase Zymase Maltase Diastase TRUE ANSWER : ? YOUR ANSWER : ?
The catalyst in a second order reversible reaction increases the rate of the forward reaction And backward reaction equally To a greater extent than that of the backward reaction And decreases that of backward reaction Only TRUE ANSWER : ? YOUR ANSWER : ?
Considering the endotheomic dissociation of CaCO₃ in a closed vessel (CaCO₃ ⇋ CaO + CO₂), the pressure of CO₂ increases, if An inert gas is pumped keeping the temperature constant The temperature is increased A catalyst is added None of these TRUE ANSWER : ? YOUR ANSWER : ?
A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction. Equal to Equal to or more than Less than More than TRUE ANSWER : ? YOUR ANSWER : ?