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Given below are two statements : Statement-I Hybridisation, shape and spin only magnetic moment of K3[Co(CO3)3] is sp3 d2, octahedral and 4.9 BM respectively. Statement-II Geometry, hybridisation and spin only magnetic moment values (BM) of the ions [Ni(CN)4]2−, [MnBr4]2− and [CoF6]3− respectively are square planar, tetrahedral, octahedral ; dsp2, sp3, sp3 d2 and 0, 5.9, 4.9. In the light of above statements, choose the correct answer from the options given below

1. Both statement-I and statement-II are false
2. Statement I is false but statement-II is true
3. Both statement-I and statement-II are true
4. Statement-I is true but statement-II is false

Correct answer: Both statement-I and statement-II are true

Solution

Both statements accurately describe the hybridization, geometry, and magnetic moment of the specified complexes. Statement-I correctly identifies K3[Co(CO3)3] as having sp3d2 hybridization and an octahedral shape with a magnetic moment of 4.9 BM, while Statement-II correctly outlines the properties of the other complexes.

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