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16 . The property of metals by which they can be beaten in to thin sheets is called-
A. Ductility B. Expansion
C. Conduction D. Malleability

17 . Which one of the following is metal?
A. C B. O
C. N D. Na

18 . Which one of the following is non metal?
A. N B. Fe
C. Br D. Na

19 . All materials shown property of malleability expect
A. Iron B. Silver
C. Graphite D. Aluminium

20 . Which one of the following is a good conductor of electricity?
A. Iron B. Glass
C. Wood D. Plastic




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