Question 1 : A reactor is generally termed as an autoclave, when it is a
1. atmospheric pressure CSTR.
2. atmospheric pressure tank reactor.
3. high pressure batch reactor.
4. high pressure tubular reactor.
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Question 2 : The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transition state theory is valid, the value of E/R is
1. 8764°K
2. 8987°K
3. 9210°K
4. 8621°K
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Question 3 : A reversible liquid phase endothermic reaction is to be carried out in a plug flow reactor. For minimum reactor volume, it should be operated such that the temperature along the length
1. is at the highest allowable temperature throughout.
2. increases
3. first increases and then decreases.
4. decreases
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Question 4 : A batch reactor is suitable for
1. large scale gaseous phase reactions.
2. liquid phase reactions.
3. obtaining uniform polymerisation products in highly exothermic reactions.
4. achieving cent percent conversion of reactants into products.
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Question 5 : In an exothermic chemical reaction, the reactants compared to the products have
1. higher temperature
2. more energy
3. same energy.
4. less energy
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Question 6 : The reaction between oxygen and organic material is a/an __________ reaction.
1. endothermic
2. exothermic
3. biochemical
4. photochemical
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Question 7 : For a heterogeneous catalytic reaction
1. the surface of the catalyst does not play an important role during reaction.
2. a relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important.
3. the catalyst does not form an intermediate complex with the reactant.
4. free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction.
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Question 8 : Which of the following is the most suitable for very high pressure gas phase reaction ?
1. Fluidised bed reactor
2. Stirred tank reactor
3. Tubular flow reactor
4. Batch reactor
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Question 9 : With decrease in temperature, the equilibrium conversion of a reversible endother-mic reaction
1. decreases
2. remains unaffected
3. increases
4. increases linearly with temperature
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Question 10 : The most unsuitable reactor for carrying out reactions in which high reactant concentration favours high yields is
1. series of CSTR
2. PFR in series
3. plug flow reactor
4. backmix reactor
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