Q. Symbol of gold is

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Q. Praseodymium is the

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Q. Elements un-common to both living things and non-living things include

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Q. A mixture

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Q. S is symbol of

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Q. Most common element in air is

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Q. Physical properties are individual and not result of constituting elements in

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Q. The lowest density of metals provided is of

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Q. After Barium (Ba), metal that has highest density is

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Q. The density of Calcium (Ca) being the lowest in Group-II elements, the next element of lowest density is

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Q. The metal among the four with the highest density is

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Q. Fluorine is more oxidizing in nature than

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Q. Fluorine can be stored in a metal lined with nickel and copper alloy to protect from

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Q. Fluorine reacts with noble gases to form

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Q. At temperatures above 1500 °C, hydrogen fluoride (HF) and hydrogen chloride (HCl) are

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Q. A fluorine atom (F) affects pair of an electron in a covalent bond, which is

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Q. The -COOH is the functional group of

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Q. All compounds consist of particular atoms in their molecules or group of atoms which is called as

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Q. CH₃COOC₂H₅ is the structural formula for

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Q. The barium metal is highly reactive if it is stored in

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