Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Open MARKS Web Download App
Search any question & find its solution
Question: Answered & Verified by Expert
Assertion: The packing efficiency is maximum for the $f c c$ structure.
Reason: The coordination number is 12 in $f c c$ structures.
ChemistrySolid State
Options:
  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • D
    If the Assertion is incorrect but the Reason is correct.
Solution:
2321 Upvotes Verified Answer
The correct answer is:
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
Packing efficiency is maximum for $f c c$ structure because it consists of total four atoms per unit cell. Packing efficiency is maximum in $f c c$ structure which is equal to $74 \%$

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.

Use on iOS or Desktop Download from Google Play