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Question: Answered & Verified by Expert
Assertion : $\mathrm{AlCl}_3$ exists as a dimer through halogen bridged bonds.
Reason : $\mathrm{AlCl}_3$ gets stability by accepting electrons from the bridged halogen.
Chemistryp Block Elements (Group 13 & 14)AP EAMCETAP EAMCET 2016
Options:
  • A Both (A) and (R) are true and (R) is the correct explanation of (A)
  • B Both (A) and (R) are true but (R) is not the correct explanation of (A)
  • C (A) is true, but (R) is false
  • D (A) is false, but (R) is true
Solution:
1817 Upvotes Verified Answer
The correct answer is: Both (A) and (R) are true and (R) is the correct explanation of (A)
$\mathrm{AlCl}_3$ exists as a dimer through halogen bridged bonds. In dimer $\mathrm{Al}_2 \mathrm{Cl}_6$ aluminium completes its octet through coordinates bond by chloine atom.

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