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In which of the following solutions will platinum dissolve? |
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(a) |
Conc. HNO3 and Conc. HCl in the ratio 3:1 |
(b) |
Conc. H2SO4 and conc. HNO3 in the ratio 3:4 |
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(c) |
Conc. HCl and conc. H2SO4 in the ratio 1:3 |
(d) |
Conc. HCl and conc. HNO3 in the ratio 3:1 |
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In which of the following solutions will platinum dissolve? |
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|
(a) |
Conc. HNO3 and Conc. HCl in the ratio 3:1 |
(b) |
Conc. H2SO4 and conc. HNO3 in the ratio 3:4 |
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(c) |
Conc. HCl and conc. H2SO4 in the ratio 1:3 |
(d) |
Conc. HCl and conc. HNO3 in the ratio 3:1 |