Which one of the following statements is not correct ?

[amp_mcq option1=”Graphite is a non-metal” option2=”Graphite is an allotrope of carbon” option3=”Graphite is a conductor of electricity” option4=”Graphite has a tetrahedral structure” correct=”option4″]

This question was previously asked in

UPSC CAPF – 2016

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Statement D is incorrect. Graphite has a layered structure where carbon atoms are arranged in hexagonal rings. Each carbon atom is covalently bonded to three other carbon atoms within the same layer. These layers are held together by weak van der Waals forces. A tetrahedral structure is characteristic of diamond, another allotrope of carbon, where each carbon atom is bonded to four other carbon atoms in a three-dimensional network.

Distinguishing between the structures of different allotropes of carbon like graphite and diamond is fundamental in chemistry and materials science.

Statement A is correct: Graphite is an allotrope of carbon, which is a non-metal element.
Statement B is correct: Graphite is one of the naturally occurring allotropes of carbon.
Statement C is correct: Graphite is a good conductor of electricity due to the presence of delocalized electrons within its layered structure, which can move freely along the layers.

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