Chemistry Exam  >  Chemistry Questions  >  The number of spinels having equal number of ... Start Learning for Free
The number of spinels having equal number of A2+ and B3+ ions in octahedral and tetrahedral voids are________
NiCr2O4, FeCr2O4, CO3O4, CrFe2O4, AlMg2O4, NiGa2O4
    Correct answer is '3'. Can you explain this answer?
    Verified Answer
    The number of spinels having equal number of A2+ and B3+ions in octahe...
    The inverse spinel has the equal number of A2+ and b3+ ions in octahedral voids.
    View all questions of this test
    Most Upvoted Answer
    The number of spinels having equal number of A2+ and B3+ions in octahe...
    Number of A2 and B3 ions in spinels
    In spinels, the general formula is AB2O4, where A represents divalent cations (A2+) and B represents trivalent cations (B3+). These cations occupy both octahedral and tetrahedral voids in the crystal lattice of the spinel structure. The number of A2+ and B3+ ions in both types of voids can vary depending on the specific spinel compound.

    Determining the number of A2+ and B3+ ions in octahedral voids
    In the spinel structure, the octahedral voids are surrounded by six oxygen atoms. Each octahedral void can accommodate two divalent cations (A2+) or one trivalent cation (B3+). Therefore, the number of A2+ and B3+ ions in octahedral voids can be determined by dividing the total number of octahedral voids by 2 for A2+ ions and by 1 for B3+ ions.

    Determining the number of A2+ and B3+ ions in tetrahedral voids
    The tetrahedral voids in the spinel structure are surrounded by four oxygen atoms. Each tetrahedral void can accommodate one divalent cation (A2+) or no trivalent cation (B3+). Therefore, the number of A2+ ions in tetrahedral voids is equal to the number of tetrahedral voids, while the number of B3+ ions in tetrahedral voids is zero.

    Calculating the number of spinels with equal numbers of A2+ and B3+ ions in octahedral and tetrahedral voids
    To determine the number of spinels with equal numbers of A2+ and B3+ ions in octahedral and tetrahedral voids, we need to analyze the given spinel compounds:
    1. NiCr2O4: In this compound, there are 2 Ni2+ ions and 4 Cr3+ ions. Thus, the numbers of A2+ and B3+ ions in octahedral and tetrahedral voids are not equal.
    2. FeCr2O4: Similarly, in this compound, there are 2 Fe2+ ions and 4 Cr3+ ions. Hence, the numbers of A2+ and B3+ ions in octahedral and tetrahedral voids are not equal.
    3. CO3O4: In this compound, there are 3 Co2+ ions and 4 O2- ions. Therefore, the numbers of A2+ and B3+ ions in octahedral and tetrahedral voids are not equal.
    4. CrFe2O4: In this compound, there are 2 Cr3+ ions and 4 Fe2+ ions. Thus, the numbers of A2+ and B3+ ions in octahedral and tetrahedral voids are not equal.
    5. AlMg2O4: In this compound, there are 2 Al3+ ions and 4 Mg2+ ions. Hence, the numbers of A2+ and B3+ ions in octahedral and tetrahedral voids are not equal.
    6. NiGa2O4: In this compound, there are 2 Ni2+ ions and 4 Ga3+ ions
    Free Test
    Community Answer
    The number of spinels having equal number of A2+ and B3+ions in octahe...
    Answer 2 CrFe2O4 and NiGa2O4 inverse remaining all normal
    Explore Courses for Chemistry exam
    The number of spinels having equal number of A2+ and B3+ions in octahedral and tetrahedral voids are________NiCr2O4,FeCr2O4, CO3O4,CrFe2O4,AlMg2O4,NiGa2O4Correct answer is '3'. Can you explain this answer?
    Question Description
    The number of spinels having equal number of A2+ and B3+ions in octahedral and tetrahedral voids are________NiCr2O4,FeCr2O4, CO3O4,CrFe2O4,AlMg2O4,NiGa2O4Correct answer is '3'. 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 The number of spinels having equal number of A2+ and B3+ions in octahedral and tetrahedral voids are________NiCr2O4,FeCr2O4, CO3O4,CrFe2O4,AlMg2O4,NiGa2O4Correct answer is '3'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The number of spinels having equal number of A2+ and B3+ions in octahedral and tetrahedral voids are________NiCr2O4,FeCr2O4, CO3O4,CrFe2O4,AlMg2O4,NiGa2O4Correct answer is '3'. Can you explain this answer?.
    Solutions for The number of spinels having equal number of A2+ and B3+ions in octahedral and tetrahedral voids are________NiCr2O4,FeCr2O4, CO3O4,CrFe2O4,AlMg2O4,NiGa2O4Correct answer is '3'. Can you explain this answer? in English & in Hindi are available as part of our courses for Chemistry. Download more important topics, notes, lectures and mock test series for Chemistry Exam by signing up for free.
    Here you can find the meaning of The number of spinels having equal number of A2+ and B3+ions in octahedral and tetrahedral voids are________NiCr2O4,FeCr2O4, CO3O4,CrFe2O4,AlMg2O4,NiGa2O4Correct answer is '3'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The number of spinels having equal number of A2+ and B3+ions in octahedral and tetrahedral voids are________NiCr2O4,FeCr2O4, CO3O4,CrFe2O4,AlMg2O4,NiGa2O4Correct answer is '3'. Can you explain this answer?, a detailed solution for The number of spinels having equal number of A2+ and B3+ions in octahedral and tetrahedral voids are________NiCr2O4,FeCr2O4, CO3O4,CrFe2O4,AlMg2O4,NiGa2O4Correct answer is '3'. Can you explain this answer? has been provided alongside types of The number of spinels having equal number of A2+ and B3+ions in octahedral and tetrahedral voids are________NiCr2O4,FeCr2O4, CO3O4,CrFe2O4,AlMg2O4,NiGa2O4Correct answer is '3'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The number of spinels having equal number of A2+ and B3+ions in octahedral and tetrahedral voids are________NiCr2O4,FeCr2O4, CO3O4,CrFe2O4,AlMg2O4,NiGa2O4Correct answer is '3'. Can you explain this answer? tests, examples and also practice Chemistry tests.
    Explore Courses for Chemistry exam
    Signup for Free!
    Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
    10M+ students study on EduRev