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In photochemical reactions, absorption of _____ radiations takes place.

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In photochemical reactions, absorption of _____ radiations takes place.

(a) ultraviolet and visible

(b) radio

(c) only visible

(d) visible and x-rays

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Origin of the question is Photochemical Reactions topic in section Photochemistry of Engineering Chemistry I

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Correct choice is (a) ultraviolet and visible

Explanation: Absorption of visible and ultraviolet radiations can only take place in a photochemical reaction. Wavelength of absprbed radiations ranges from 2000 – 8000 Å.

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