Exams › JEE Main › General

The incorrect statement is :

1. the color of [CoCl(NH 3 ) 5 ] 2+ is violet as it absorbs the yellow light.
2. the gemstone, ruby, has Cr 3+ ions occupying the octahedral sites of beryl.
3. the spin-only magnetic moment of [Ni(NH 3 ) 4 (H 2 O) 2 ] 2+ is 2.83 BM.
4. the spin-only magnetic moments of [Fe(H 2 O) 6 ] 2+ and [Cr(H 2 O) 6 ] 2+ are nearly similar.

Correct answer: the gemstone, ruby, has Cr 3+ ions occupying the octahedral sites of beryl.

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