MCQ
In the following given reaction ' $A$ ' is


- A

- B

- C

- ✓








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$(A)$ It has two geometrical isomers
$(B)$ It will have three geometrical isomers if bidentate 'en' is replaced by two cyanide ligands
$(C)$ It is paramagnetic
$(D)$ It absorbs light at longer wavelength as compared to $\left[ Co ( en )\left( NH _3\right)_4\right]^{3+}$
Given :
| List-I (Test) | List-II (Identification) | ||
| (A) | Bayer's test | (I) | Phenol |
| (B) | Ceric ammonium nitrate test | (II) | Aldehyde |
| (C) | Phthalein dye test | (III) | Alcoholic-OH group |
| (D) | Schiff's test | (IV) | Unsaturation |