MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistrySolid stateCI - ionic solid

Given, Column A Column B A. Ionic solid I. NaCl B. Metallic solid II. Fe C. Covalent solid III. C(graphite) D. Molecular solid IV. Dry ice

A.A-II, B-I, C-IV, D-III

B.A-I, B-II, C-III, D-IV✓ Correct

C.A-III, B-II, C-I, D-IV

D.A-II, B-IV, C-I, D-III

Explanation

NaCl is an ionic solid having and Na Cl ions. Fe is a metallic solid, it exhibits high thermal and electrical conductivity, metallic luster and malleability. Graphite (c) is a covalent solid. Strong covalent bonds are present in between the C atoms in graphite. Dry ice is a molecular solid. Molecular crystals are those solids that are held together by van der Waals forces. Hence the correct answer is option (b)

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