1) Generally, metals are solid at room temperature. Which one of the following element is found in liquid state at room temperature? a) Na b) Fe c) Cr d) Hg 2) Among non-metals ____ is a good conductor of electricity. a) Graphite b) Hydrogen c) Nitrogen d) Oxygen 3) Silver jewellery tarnish in the presence of moisture and ____. a) Nitrogen b) Sulphur compounds c) Oxygen d) Carbon dioxide 4) Metals react with water to form: a) Oxides b) Non-metals c) water d) Hydroxides 5) An element which conducts heat energy well and can be easily shaped is a _____. a) Metal b) Non-metal c) Noble gas d) All of the above 6) Which of the following is good conductor of electricity? a) Water b) Air c) Iron d) Hydrogen 7) ____ gas is produced by the reaction of strong base with metal. a) Nitrogen b) Dihydrogen c) Helium d) Neon 8) Chemical nature of oxides of non-metals is ____. a) Acidic b) Basic c) Both d) None

GN6002_Maharshtra_board_8th_class_metals_and_nonmetals

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