Quantum MCQs Questions Answers
on the basis of quantum efficiency can be done into which categories classification of photochemical reaction.
(A). Â 4
(B). Â 2
(C). Â 3
(D). Â 5
(E). None of these
Multiple Choice Question Answer: Â c
.With the number of photons absorbed for expressing the relationship between the number of molecules reacting, the concept of which one was introduced?
(A). Â photon degradation
(B). Â photon analysis
(C). Â quantum mechanism
(D). Â quantum efficiency
(E). None of these
Multiple Choice Question Answer:Â d
. By which of the following Quantum efficiency is given?
(A). nq/Nhcλ
(B). nNhc/qλ
(C). ncλ/Nhq
(D). qλ/nNhc
(E). None of these
Multiple Choice Question Answer: Â b
. which of the following is correct if a reaction obeys Einstein law, quantum yield?
(A). Â 0
(B). Â more than 1
(C). Â less than 1
(D). Â 1
(E). None of these
Multiple Choice Question Answer: Â d
. The reaction has which quantum yield when the number of molecules decomposed is less than one per photon,.
(A). Â variable
(B). Â high
(C). Â unpredictable
(D). Â low
(E). None of these
Multiple Choice Question Answer: Â d
. The reaction has which quantum yield when two or more molecules are decomposed per photon?
(A). Â unpredictable
(B). Â low
(C). Â high
(D). Â variable
(E). None of these
Multiple Choice Question Answer:Â c
. Decomposition of HI has quantum yield equals to which one?
(A). Â 1
(B). Â 0
(C). Â 2
(D). Â 4
(E). None of these
Multiple Choice Question Answer: Â c
. __________________ is the condition for high and low quantum yield.
(A). Â for forming the products the molecules in the activated state should be largely unstable and decompose
(B). Â in the different energy state all the reactant molecules should be
(C). Â temperature dependent the reactivity of the molecules should be
(D). Â quantum field=1
(E). None of these
Multiple Choice Question Answer: Â a
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