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Question
Chemistry
Platinum black is
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Q. Platinum black is
The d-and f-Block Elements
A
platinum metal mixed with $MnO_2$
28%
B
velvety black powder obtained by reduction of platinum tetrachloride with glucose orsodium formate
50%
C
platinum metal coated with black colour
15%
D
None of these
7%
Solution:
See Comprehensive Review