

MCQOPTIONS
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1. |
_ Prussian blue is chemically represented by$? |
A. | FeO.TiO‚ÇÇ |
B. | Ca SO‚ÇÑ . 2H‚ÇÇO |
C. | Fe‚ÇÑ [Fe (CN‚ÇÜ)‚ÇÉ] |
D. | AlF‚ÇÉ . 3NaF |
Answer» D. AlF‚Äö√á√â . 3NaF | |