Explanation: The carbon atom in graphite is covalently
bonded together in hexagons, which arc arranged in layers. The bonding between the layers of carbon atoms is very weak and there are delocalind electrons between the Layers to conduct electric current.
Q: Which one of the following characteristics is not usually
attributable to ionic substance ?
Answer: Deform when
Explanation: Ionic substances have electrostatic bonds
which are stronger than van der Waals forces found in atomic and molecular substances. They have all properties fisted above except for deform when struck,
Q: Which statement is not true for the reaction?
Fe2+ + e- → Fe+2
(a) : Fe+3 is being
(b) : Oxidation state
of Fe has changed
(c) : Fe+3 could be referred to as an oxidizing agent in this reaction