Assertion: Among the carbon allotropes, diamond is an insulator, whereas, graphite is a good conductor of electricity.Reason: Hybridization of carbon in diamond and graphite are sp3 and sp2 respectively.Both assertion and reason are correct, but the reason is not the correct explanation for the assertion.Both assertion and reason are correct, but the reason is the correct explanation for the assertion.Both assertion and reason are incorrect.Assertion is incorrect statement, but the reason is correct.
Question
Assertion: Among the carbon allotropes, diamond is an insulator, whereas, graphite is a good conductor of electricity.Reason: Hybridization of carbon in diamond and graphite are sp3 and sp2 respectively.Both assertion and reason are correct, but the reason is not the correct explanation for the assertion.Both assertion and reason are correct, but the reason is the correct explanation for the assertion.Both assertion and reason are incorrect.Assertion is incorrect statement, but the reason is correct.
Solution
Both the assertion and reason are correct, but the reason is not the correct explanation for the assertion.
The assertion is correct because diamond is indeed an insulator and graphite is a good conductor of electricity. However, the reason provided is not the correct explanation for this.
The difference in electrical conductivity between diamond and graphite is not due to their different types of hybridization (sp3 in diamond and sp2 in graphite). Instead, it is due to the structure and bonding of the carbon atoms in each allotrope.
In diamond, each carbon atom is covalently bonded to four other carbon atoms, forming a rigid three-dimensional structure. This leaves no free electrons to conduct electricity, making diamond an electrical insulator.
In contrast, in graphite, each carbon atom is covalently bonded to three other carbon atoms, forming layers of hexagonal rings. This leaves one electron per carbon atom free to move, which allows graphite to conduct electricity.
Similar Questions
Why are graphite and diamond so different from each other, even though they are made of the same element? (choose the best answer)They were found at different locationsThey are made of different components The atoms are arranged differently
Assertion: In a period left to right metallic character increases Reason : In a period left to right electronegativity decreasesA Both Assertion & Reason are true and the reason is the correct explanation of the assertion B Both Assertion & Reason are true but the reason is not the correct explanation of the assertion C Assertion is true statement but Reason is false D Both Assertion and Reason are false statements
How many covalent bonds does each carbon atom in diamond form?23452How many covalent bonds does each carbon atom in graphite form?53423Why can graphite conduct electricity?Because it is a metalBecause it has delocalised electrons that can move along between its layersBecause it has a very high melting pointBecause all the electrons are fixed in place within the covalent bonds4Why can diamond not conduct electricity?Because all the electrons are delocalisedBecause all the electrons are fixed in place within the covalent bondsBecause it has a very high melting pointBecause it is not a metal5Why do diamond and graphite have such high melting points?Because they are so bigBecause they have very strong intermolecular bondsBecause they have delocalised electronsBecause they have very strong covalent bonds6Which statement best explains why graphite is soft?The covalent bonds are easy to breakIt can conduct electricityIt has a rigid structureThe layers of carbon atoms can slide over each other
Explain why graphite is:• a good electrical conductor• soft and slippery.You should answer in terms of structure and bonding.[6 marks]
Diamond and Graphite have the sameGroup of answer choicesHardness.Cleavage.Chemical composition.Internal arrangement of atoms.
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