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The incorrect statement is:
- a)The colour of [CoCl(NH3)5]2+ is violet as it absorbs the yellow light.
- b)The spin only magnetic moments of [Fe(H2O)6]2+ and [Cr(H2O)6]2+ are nearly similar.
- c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+ is 2.83 BM.
- d)The gemstone ruby has Cr3+ ions occupying the octahedral sites of beryl.
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as ...
(1) [Fe(H2O)6]2+, Fe2+ → 3d6 → 4 unpaired electron
[Cr(H2O)6]2+, Cr2+ → 3d4 → 4 unpaired electron
(2) [Ni(NH3)4(H2O)2]2+, Ni2+ → 3d8 → 2 unpaired electron
μm = 2.83 B.M
(3) In gemstone, ruby has Cr3+ ion occupying the octahedral sites of aluminium oxide (Al2O3) normally occupied by Al3+ ion.
(4) The complementary color of violet is yellow.
[Cr(H2O)6]2+, Cr2+ → 3d4 → 4 unpaired electron
(2) [Ni(NH3)4(H2O)2]2+, Ni2+ → 3d8 → 2 unpaired electron
μm = 2.83 B.M
(3) In gemstone, ruby has Cr3+ ion occupying the octahedral sites of aluminium oxide (Al2O3) normally occupied by Al3+ ion.
(4) The complementary color of violet is yellow.
Most Upvoted Answer
The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as ...
Incorrect Statement Explanation: Ruby and Cr3+ Ions
The correct answer is option 'D', which states that "the gemstone ruby has Cr3+ ions occupying the octahedral sites of beryl." This statement is incorrect for the following reasons:
Ruby Composition
- Ruby is a variety of corundum, which is primarily composed of aluminum oxide (Al2O3).
- The red color of ruby primarily arises from the presence of Cr3+ ions substituting for Al3+ in the corundum structure.
Confusion with Beryl
- Beryl is a different mineral with the chemical formula Be3Al2Si6O18.
- It is important to note that ruby does not form from beryl; instead, it is a distinct mineral in which Cr3+ ions contribute to its color.
Location of Cr3+ Ions
- In ruby, Cr3+ ions occupy specific sites within the corundum crystal structure, not octahedral sites of beryl.
- The substitution of Cr3+ ions for Al3+ in the corundum lattice leads to the characteristic red color of ruby.
Conclusion
- Therefore, the statement that ruby has Cr3+ ions occupying octahedral sites of beryl is fundamentally flawed, as ruby and beryl are entirely different minerals with distinct crystal structures.
This highlights the importance of understanding mineral compositions and the correct placement of ions within their respective structures.
The correct answer is option 'D', which states that "the gemstone ruby has Cr3+ ions occupying the octahedral sites of beryl." This statement is incorrect for the following reasons:
Ruby Composition
- Ruby is a variety of corundum, which is primarily composed of aluminum oxide (Al2O3).
- The red color of ruby primarily arises from the presence of Cr3+ ions substituting for Al3+ in the corundum structure.
Confusion with Beryl
- Beryl is a different mineral with the chemical formula Be3Al2Si6O18.
- It is important to note that ruby does not form from beryl; instead, it is a distinct mineral in which Cr3+ ions contribute to its color.
Location of Cr3+ Ions
- In ruby, Cr3+ ions occupy specific sites within the corundum crystal structure, not octahedral sites of beryl.
- The substitution of Cr3+ ions for Al3+ in the corundum lattice leads to the characteristic red color of ruby.
Conclusion
- Therefore, the statement that ruby has Cr3+ ions occupying octahedral sites of beryl is fundamentally flawed, as ruby and beryl are entirely different minerals with distinct crystal structures.
This highlights the importance of understanding mineral compositions and the correct placement of ions within their respective structures.
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The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer?
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The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer?.
The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer?.
Solutions for The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
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The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer?, a detailed solution for The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The incorrect statement is:a)The colour of [CoCl(NH3)5]2+is violet as it absorbs the yellow light.b)The spin only magnetic moments of [Fe(H2O)6]2+and [Cr(H2O)6]2+are nearly similar.c)The spin only magnetic moment of [Ni(NH3)4(H2O)2]2+is 2.83 BM.d)The gemstone ruby has Cr3+ions occupying the octahedral sites of beryl.Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice JEE tests.
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