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Question
Chemistry
Platinum, palladium and iridium are called ‘noble metals’ because
Q. Platinum, palladium and iridium are called ‘noble metals’ because
2497
157
JIPMER
JIPMER 2010
The d-and f-Block Elements
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A
they were discovered by Alfred Nobel
9%
B
they are lustrous
0%
C
they are inert
87%
D
they are found in active state.
4%
Solution:
These elements are called noble metals because they are not acted upon by even strong acids and bases.