Question 2. Write the chemical formula of the following radicals.
1. Sulphate
2. Bicarbonate
3. Nitrate
4. Nitrite
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1. Sulphate formula: SO₄²-
2. Bicarbonate formula: HCO3(−) or CHO3-
3. Nitrate formula: NO3-
4. Nitrite formula: NO2−
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