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Which of the following alken earth metals accurs in nature as oxides and silicates ?A. BaB. SrC. CaD. Be |
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Answer» Correct Answer - d Beryllum is not very familiar , partly because it is not very abundent `(2pm)` and partly because it is difficuit to extract it is found is small quantities as the silicon minerals bery `(Be_(2)AI_(2)Si_(2)O_(3))` and phamecle `(Be_(2) SiO_(2))` The gemstone emerald has the same thermils formulas as bery but also contant small amount of group `2` secor maintly as carbonates . |
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