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Which of the following metals comes in an exothermic group of metals when the solubility of hydrogen is concerned?(a) Iron(b) Titanium(c) Magnesium(d) Nickel |
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Answer» Correct option is (b) Titanium To explain: When the solubility of hydrogen is concerned, titanium comes in an exothermic group of metals which absorb more hydrogen than endothermic metals (iron, magnesium, nickel etc). Further, in exothermic metals, the solubility of hydrogen decreases with temperature. The reverse is true for endothermic metals. |
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