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Which metal is resistant to all acids?

Gold
Silver
Platinium
Tantalum
--- note the answer is invalid --- Noble metals such as gold, pla­tini­um and pal­la­di­um can be dis­solved in aqua regia, a highly con­cen­trat­ed mixture of hy­drochlo­ric acid and nitric acid. Silver is soluble in pure nitric acid. Ruthe­ni­um can be dis­solved in aqua regia only when in the presence of oxygen, while rhodium must be in a fine pul­ver­ized form. Niobium and tantalum are re­sis­tant to all acids, in­clud­ing aqua regia.

Answers distribution

Gold
Silver
Platinium
Tantalum
answers
flagFinland
4%
4%
4%
86%
22
flagVietnam
0%
14%
0%
85%
7
flagFrance
6%
0%
12%
81%
16
flagthe United Arab Emirates
0%
0%
23%
76%
13
flagGermany
11%
3%
13%
71%
60
flagAustralia
25%
8%
0%
66%
12
flagRepublic of Ireland
0%
0%
33%
66%
6
flagSpain
0%
0%
33%
66%
6
flagMalaysia
37%
0%
0%
62%
8
flagthe United Kingdom
16%
2%
22%
57%
135
flagCanada
28%
0%
14%
57%
14
flagPoland
15%
3%
28%
52%
3903
flagthe Netherlands
26%
0%
26%
46%
15
flagthe United States
16%
6%
31%
45%
111
flagUnknown
26%
0%
30%
43%
30
flagthe Philippines
33%
0%
44%
22%
9
flagIndia
30%
14%
32%
21%
56
flagPakistan
0%
0%
83%
16%
6
flagItaly
50%
0%
33%
16%
6
flagNorway
27%
0%
72%
0%
11

Gender

men58%
women56%
Gold
12%
13%
Silver
2%
2%
Platinium
25%
28%
Tantalum
58%
56%

Details

Author: Sumit Tamang
Illustration: webtreats
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