1.

AsCu, a preservative for wood, developed by the Forest Research Institute, Dehradun, comprises of chemicals:As2O5.2H2O, CuSO4.5H2O and K2Cr2C7 in the proportion of

A. 1 : 1 : 1
B. 1 : 2 : 3
C. 1 : 2 : 4
D. 1 : 3 : 4
Answer» E.


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