Q. Rock salt has the chemical formula

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Q. The ability of an element to accept electrons and form positive ions is called

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Q. Chlorine reacts with calcium hydroxide to form

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Q. The metal which is used for making jewellery

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Q. Halogens belong to group

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Q. The catalyst used by chlorine to decompose water is

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Q. The word "alkali" means

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Q. Solubility of halogens in water down the group

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Q. The use of gold is

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Q. All the elements of group II-A are easily oxidized by atmospheric oxygen except

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Q. Elements of group 1 are collectively known as

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Q. Beryllium has mineral named as

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Q. The metal which is in the liquid state is

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Q. In the chemical reaction F₂ + 2NaCl →, products are

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Q. The color of bromine is

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Q. The element is a powerful oxidizing agent and destroys organic matter

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Q. Alkalis are good reducing agent except

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Q. The color of fluorine is

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Q. Complete the following reaction V₂O₅ + →

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Q. All group II-A elements react with hydrogen forming hydrides except

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