Q. Variable valencies are used to indicate ions

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Q. In CuO (Copper Oxide), valency of Copper is

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Q. In order to get Sodium Sulfite (Na₂SO₃) as product, reactants shall be Sulfur Dioxide (SO₂) and

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Q. Relative molecular mass of Na₂CO₃ is

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Q. Formula of Ammonium Sulfate ((NH₄)₂SO₄) is

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Q. Natrium is Latin name for

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Q. Formula of copper carbonate is

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Q. Substance is treated both as a radical and an element. It is

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Q. All are examples of radicals except

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Q. Valency of hydroxide ion (OH) is

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Q. Formula of carbonic acid is

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Q. To balance Al(OH)₃ + HNO₃ → Al(NO₃)₃ + H₂O, number of Al(OH)₃ molecules will be

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

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Q. All of these radicals have a valency of 1, except

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Q. A white smoke consisting of fine white solid particles is formed by

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Q. Formula of Calcium Hydrogen Carbonate is

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Q. Charge on an ion is a measure of its

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Q. Color gas is

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Q. If an acid reacts with a carbonate, product will always include

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Q. Relative formula mass of aluminum sulphate (NH₄)₂SO₄ is

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