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Given the molecular formula of the hexa-coordinated complexes (A) CoCl3.6NH3 (B) CoCl3.5NH3   (C) CoCl3.4NH3. If the number of coordinated NH3 molecules in A, B and C respectively are 6, 5 and 4 the primary valency in (A), (B) and (C) are:
  • a)
    6, 5, 4                             
  • b)
    3, 2, 1                          
  • c)
    0, 1, 2                          
  • d)
    3, 3, 3
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Given the molecular formula of the hexa-coordinated complexes (A) CoCl...
Explanation:

Primary Valency:
- Primary valency is the oxidation state of the central metal atom, which is equal to the charge on the metal ion in the complex.

Complex (A) CoCl3.6NH3:
- In this complex, the molecular formula indicates that the coordination number is 6, which means there are 6 NH3 molecules coordinated to the central cobalt atom.
- Since the charge on Co3+ ion is +3 and there are 6 Cl- ions, the primary valency is 3.

Complex (B) CoCl3.5NH3:
- In this complex, the molecular formula indicates that the coordination number is 5, which means there are 5 NH3 molecules coordinated to the central cobalt atom.
- Since the charge on Co3+ ion is +3 and there are 3 Cl- ions, the primary valency is 3.

Complex (C) CoCl3.4NH3:
- In this complex, the molecular formula indicates that the coordination number is 4, which means there are 4 NH3 molecules coordinated to the central cobalt atom.
- Since the charge on Co3+ ion is +3 and there are 2 Cl- ions, the primary valency is 3.
Therefore, the primary valency in complexes (A), (B), and (C) are all 3.
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Given the molecular formula of the hexa-coordinated complexes (A) CoCl...
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Given the molecular formula of the hexa-coordinated complexes (A) CoCl3.6NH3 (B) CoCl3.5NH3 (C) CoCl3.4NH3. If the number of coordinated NH3 molecules in A, B and C respectively are 6, 5 and 4 the primary valency in (A), (B) and (C) are:a)6, 5, 4b)3, 2, 1c)0, 1, 2d)3, 3, 3Correct answer is option 'D'. Can you explain this answer?
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Given the molecular formula of the hexa-coordinated complexes (A) CoCl3.6NH3 (B) CoCl3.5NH3 (C) CoCl3.4NH3. If the number of coordinated NH3 molecules in A, B and C respectively are 6, 5 and 4 the primary valency in (A), (B) and (C) are:a)6, 5, 4b)3, 2, 1c)0, 1, 2d)3, 3, 3Correct answer is option 'D'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about Given the molecular formula of the hexa-coordinated complexes (A) CoCl3.6NH3 (B) CoCl3.5NH3 (C) CoCl3.4NH3. If the number of coordinated NH3 molecules in A, B and C respectively are 6, 5 and 4 the primary valency in (A), (B) and (C) are:a)6, 5, 4b)3, 2, 1c)0, 1, 2d)3, 3, 3Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Given the molecular formula of the hexa-coordinated complexes (A) CoCl3.6NH3 (B) CoCl3.5NH3 (C) CoCl3.4NH3. If the number of coordinated NH3 molecules in A, B and C respectively are 6, 5 and 4 the primary valency in (A), (B) and (C) are:a)6, 5, 4b)3, 2, 1c)0, 1, 2d)3, 3, 3Correct answer is option 'D'. Can you explain this answer?.
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