d and f Block Elements Part 1

Section: Chemistry

Question : 41 of 100

Marks: +1, -0

The INCORRECT statement is :

[10 Apr 2019 Shift 2]

The gemstone, ruby has Cr3+ ions occupying the octahedral sites of beryl
The spin – only magnetic moments of [ Fe (H2O )6 ]2+ and [ Cr( H2O)6 ]2+ are nearly similar
The color of [ CoCl( NH3 )5 ]2+ is violet as it absorbs the yellow light
The spin only – magnetic moment of [Ni(NH3 )4 (H2O2 ) ]2+ is 2.83 BM.

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