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Which of the following are the principle laws of photochemistry?

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Which of the following are the principle laws of photochemistry?

(a) Grothus-Draper and Stark-Einstein law

(b) Raoult’s and Dalton’s law

(c) Raoult’s and Henry’s law

(d) Lambert’s and Beer’s law

I have been asked this question in quiz.

My enquiry is from Photochemical Reactions topic in chapter Photochemistry of Engineering Chemistry I

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The correct option is (a) Grothus-Draper and Stark-Einstein law

Explanation: Two fundamental principles of photochemistry are there. They are Grothus-Draper law and Stark-Einstein law.

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