Question

Platinum black is

• A. platinum metal mixed with $MnO_2$
• B. velvety black powder obtained by reduction of platinum tetrachloride with glucose orsodium formate
• C. platinum metal coated with black colour
• D. None of these

Answer 1

Answer: (B)

velvety black powder obtained by reduction of platinum tetrachloride with glucose orsodium formate

Answer 2

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