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The salt which does not form coloured metaborate in borax bead test.A. `Fe_(2)(SO_(4))_(3)`B. `Al_(2)(SO_(4))_(3)`C. `Cr_(2)(SO_(4))_(3)`D. `CoSO_(4)` |
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Answer» Correct Answer - A `(r_(x_(3)))/(r_(CH_(4)))=sqrt((M_(CH_(4)))/(M_(x_(3))))` `(4//3)/(1)=sqrt((16)/(M_(x_(3))))" "M_(x_(3))=9` Atomic mass x = 3 `V.D.=(9)/(2)=4.5" "d=(MP)/(RT)` |
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