Question

Which of the following is the condition for high and low quantum yield?

(a) The reactivity of the molecules should be temperature dependent

(b) All the reactant molecules should be in the different energy state

(c) The molecules in the activated state should be largely unstable and decompose to form the products

(d) quantum field=1

This question was addressed to me in unit test.

I'd like to ask this question from Quantum Efficiency in section Photochemistry of Engineering Chemistry I

Answer 1

Right choice is (c) The molecules in the activated state should be largely unstable and decompose to form the products

The explanation: The molecules in the activated state should be largely unstable and decompose to form the products. The reactivity of the molecules should not be independent on temperature. All the reactant molecules should be initially in the same energy state.