Why does a paper always go yellowish with the passage of time? 330 viewsJanuary 3, 2024 Question90.98K June 21, 2021 0 Comments Also, why it is always yellow color, and not any other color? In: Chemistry 3 Answers ActiveNewestOldest Anonymous Posted June 21, 2021 0 Comments Paper contains a chemical called lignin. Sunlight and air causes this molecule to break down over time. This change in structure results in it absorbing more like, thus appearing darker and making the paper yellow and brown. You are viewing 1 out of 3 answers, click here to view all answers. Register or Login
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