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The diagram given below is a part of Periodic Table. Study the table and answer the questions given below the table :(i) Name two elements in same group of Periodic Table. (ii) Name the Transition metal. (iii) Name one elements, whose oxide has a very low melting point. (iv) Name the dement, whose oxide is basic. (v) Name an element, which reacts vigorously with water. (vi) Name an element, which form basic oxide. (vii) Which element shows variable oxidation state ? (viii) Which element is used in semi conductors ? (ix) Which elements posses complete valence shell ? (x) Which element forms very corrosive acid ? |
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Answer» (i) Oxygen and sulphur (ii) Chromium (iii) Calcium (iv) Sulphur (v) Calcium (vi) Calcium (vii) Chromium (viii) Silicon (ix) Helium and Krypton (x) Chromic acid produced by chromium. |
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