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Assertion: Diamond has a ccp arrangement...

Assertion: Diamond has a ccp arrangement in which corners, face centres and alternate tetrahedral holes are occupied by C atoms
Reason: In diamond, C atoms at corners are `sp^(3)` hybridised but at the face centres these are `sp^(2)` hybridised

A

If both assertion and reason are correct and reason is correct explanation for assertion

B

If both assertion and reason are correct but reason is not correct explanation for assertion

C

If assertion is correct but reason is incorrect

D

If both assertion and reason are incorrect

Text Solution

AI Generated Solution

The correct Answer is:
To solve the given question, we need to analyze both the assertion and the reason provided. ### Step 1: Understand the Assertion The assertion states that diamond has a CCP (cubic close packing) arrangement where corners, face centers, and alternate tetrahedral holes are occupied by carbon atoms. - **CCP Arrangement**: In a cubic close-packed structure, the atoms are arranged in a way that maximizes packing efficiency. In the case of diamond, it can be visualized as a face-centered cubic (FCC) lattice with additional carbon atoms occupying the tetrahedral voids. ### Step 2: Analyze the Carbon Atom Positions In diamond: - Carbon atoms occupy the corners and face centers of the unit cell. - Additionally, carbon atoms occupy half of the tetrahedral voids. ### Step 3: Determine the Hybridization of Carbon Atoms The reason states that: - Carbon atoms at the corners are `sp^3` hybridized. - Carbon atoms at the face centers are `sp^2` hybridized. - **Hybridization in Diamond**: In diamond, all carbon atoms are actually `sp^3` hybridized. This hybridization leads to a tetrahedral geometry, which is characteristic of diamond's structure. ### Step 4: Conclusion on Assertion and Reason - The assertion is correct: Diamond does have a CCP arrangement with carbon atoms occupying specific positions. - The reason is incorrect: All carbon atoms in diamond are `sp^3` hybridized, not `sp^2` at the face centers. ### Final Answer Thus, the conclusion is: - The assertion is correct, but the reason is incorrect. ### Correct Option The correct option is that the assertion is correct but the reason is incorrect. ---
To solve the given question, we need to analyze both the assertion and the reason provided. ### Step 1: Understand the Assertion The assertion states that diamond has a CCP (cubic close packing) arrangement where corners, face centers, and alternate tetrahedral holes are occupied by carbon atoms. - **CCP Arrangement**: In a cubic close-packed structure, the atoms are arranged in a way that maximizes packing efficiency. In the case of diamond, it can be visualized as a face-centered cubic (FCC) lattice with additional carbon atoms occupying the tetrahedral voids. ### Step 2: Analyze the Carbon Atom Positions ...
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