Q. In Na₂CO₃.10H₂O, highest percentage composition is of

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Q. Chemical composition of a compound

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Q. All are covalent compounds except

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Q. MgCO₃ + HCl reacts to form carbonic acid, which decomposes into

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Q. In Na₂CO₃, relative atomic mass of sodium is

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Q. Relative molecular mass of Sulfuric Acid (H₂SO₄) is

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Q. Chemical formula of Ammonium Sulfate is

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Q. In Copper Oxide (Cu₂O), charge on Copper (Cu) is

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Q. Hydrogen Chloride (HCl) is a

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Q. Empirical formula can be obtained if following is known:

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Q. Valency of all these ions is -2, except

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Q. Hydrochloric Acid (HCl) and Silver Nitrate (AgNO₃) react to form

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Q. Molar mass of urea NH₂CONH₂ is

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Q. Stannum is Latin name of

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Q. In KHCO₃, element with highest atomic mass is

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Q. During a chemical reaction, atoms can not be

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Q. The ions which are composed of more than one type of atom are called

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Q. The number of positive ions balances the number of negative charges so as to neutralize the compound and give the charge

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Q. The element which is never found completely pure in nature is

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Q. The representation of a chemical reaction in shorthand way is via a

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