Q. Valency of nitrogen can be

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Q. Valency of Phosphate ion PO₄ is

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Q. Molar mass of calcium chloride is

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Q. Sulphate ion can be written symbolically as

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Q. Sodium Carbonate Na₂CO₃ indicates that for each Carbonate ion (CO₃-2), number of Sodium ions (Na+) are

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Q. Chemical formula of anhydrous Monosodium Phosphate is

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Q. Relative molecular masses can be calculated

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Q. Phosphorus can have a valency of

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Q. In magnesium oxide, magnesium ion requires only one oxygen ion because

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Q. In writing chemical equations, inclusion of state symbols shall be done while

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Q. Plumbum is Latin name of

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Q. Valency of all these ions is negative 1, except

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Q. Combining Copper(I) (Cu+) with Oxygen (O₂) results in

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Q. Charge on Sulphur can be

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Q. In Calcium Chloride, percentage composition of Calcium is

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Q. Compounds are not formed by elements

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Q. Percentage of an element can be calculated through

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Q. Covalent compounds

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Q. If Magnesium Carbonate (MgCO₃) reacts with Hydrochloric Acid (HCl), products will involve

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Q. In Na₂CO₃.10H₂O, percentage of Carbon is

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