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1 LAKSHYA (JEE) Coordination Compound DPP-05 1. A co-ordination complex compound of cobal...

1 LAKSHYA (JEE) Coordination Compound DPP-05 1. A co-ordination complex compound of cobalt 6. The complex ion which has no ‘d’ electrons has the molecular formulae containing five in the central metal atom is ammonia molecules, one nitro group and two (A) [MnO4]– chlorine atoms for one cobalt atom. One mole (B) [Co(NH3)6]3+ of this compound produces three mole ions in (C) [Fe(CN)6]3– an aqueous solution on reacting with excess (D) [Cr(H2O)6]3+ of AgNO3, AgCl precipitate. The ionic formula for this complex would be 7. Which of the following statements is correct? (A) [Co(NH3)5(NO2)]Cl2 (A) [Cu(NH3)6]2+ is a colourless ion (B) [Co(NH3)5Cl][Cl(NO2)] (B) [Zn(H2O)6]2+ ion is blue coloured (C) [Co(NH3)4(No2)Cl][(NH3)Cl] (C) [Ni(CN)4]2– ion has a tetrahedral shape (D) [Co(NH3)5][(NO2)2Cl2] (D) Nickel dimethyl glyoxides is red in colour 2. Complex salt can be made by the combination of (CoIII(NH3)5Cl]X with (A) PO43– 8. Which of the following shall form an (B) Cl– octahedral complex (C) 2Cl– (A) d4 (low spin) (D) 2K+ (B) d8 (high spin) (C) d6 (low spin) 3. Cuprammonium ion [Cu(NH3)4]2+ (D) None of these (A) Tetrahedral (B) Square planar 9. Considering H2O as a weak field ligand, the (C) Triangular bipyramid number of unpaired electrons in (D) Octahedral [Mn(H2O)6]2+ will be (At. No. of Mn = 25) (A) Two 4. Which one is an example of octahedral (B) Four complex (C) Three (A) FeF63− (D) Five (B) Zn(NH3 )2+ 4 (C) Ni(CN)2− 4 10. The value of the ‘spin only’ magnetic (D) Cu(NH3 )2+ 4 moment for one of the following configurations is 2.84 BM. the correct one 5. The shape of [Fe(CN)6]4– ion is (A) d4 (in strong ligand field) (A) Hexagonal (B) d4 (in weak ligand field) (B) Pyrimidal (C) d3 (in weak as well as in strong fields) (C) Octahedral (D) d5 (in strong ligand field) (D) Octagonal  2 ANSWERS KEY 1. (A) 2. (C) 3. (B) 4. (A) 5. (C) 6. (A) 7. (D) 8. (C) 9. (D) 10. (A) Any issue with DPP, please report by clicking here- https://forms.gle/t2SzQVvQcs638c4r5 Please share your feedback on PW Teachers- https://forms.gle/jEBFswBuki4Ut2Lk6 PW Mobile APP : https://physicswala.page.link/?type=contact-us&data=open For PW Website : https://www.physicswallah.live/contact-us