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NEET2018Chemistryp Block Elements (Group 13 & 14)Actual

Assertion : Al forms [ AlF ₆ ]³⁻ but B does not form [ BF ₆ ]³⁻ . Reason : B does not react with F ₂ .

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

C. If assertion is true but reason is false.

Step-by-step solution

B does not have vacant d -orbitals as for B , second shell is the outermost shell.

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