Which anion pair gives coloured salts irrespective of positive ions?
Chromate-Dichromate ક્રોમેટ-ડાઈક્રોમેટ
Nitrate-Nitrite નાઈટ્રેટ-નાઈટ્રાઈટ
Carbonet-Bicarbonate કાર્બોનેટ-બાયકાર્બોનેટ
Sulfate-Sulfite સલ્ફેટ-સલ્ફાઈડ
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Chromate and Dichromate salts are all coloured irrespective of the cation.
=> Chromate (CrO4-2) salts generally have a yellow colour.
=> Dichromate (Cr2O7-2) salts generally have an orange colour.
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