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The total number of anionic species whic...

The total number of anionic species which give coloured gas with conc. `H_(2)SO_(4)`are:
`CO_(3)^(2-),HCO_(3)^(-),SO_(3)^(2-),NO_(3)^(-),S_(2)O_(3)^(2-),CH_(3)COO^(-),SO_(4)^(2-)`.

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Verified by Experts

The correct Answer is:
2
`NO_(3)^(-),NO_(2)^(-)`
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GRB PUBLICATION-SALT ANALYSIS-Subjective Type
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