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Q.
What is Verdigris?
NTA AbhyasNTA Abhyas 2022
Solution:
Basic copper acetate [Verdigris - $\left[\left(\right. \left(\text{CH}\right)_{3} \text{COO} \left.\right)_{2} \text{Cu} \text{.Cu} \left(\right. \text{OH} \left.\right)_{2}\right]$ is a blue green powder used in green pigment and in dyes. Also in manufacture of insectisides and fungicides.