Question No:1

Which of the following statement is true

[A] FeCO₃and Fe₃C are organometallic compounds.
[B] In ferrocene ligand is cyclopentadienyl.
[C] Pb(C₂H₅)₄is π -bonded OMC
[D] In zeise salt central metal is Sp³ hybridised.



Question No:2

Which of the following is not a –bonded organometallic compound ?

[A] (C ₂H₅ ) ₂ Zn
[B] Sn(C₂ H₅ ) ₄
[C] [(CH₃ ) ₃ Al] ₂
[D] Fe(n⁵–C₂ H₅ ) ₂



Question No:3

Solution of TiCl₄and trialkylaluminium used as a catalyst in polymerisation of olefins is called:-

[A] Wilkinson’s catalyst
[B] Zeigler Natta catalyst
[C] Homogeneous catalyst
[D] Grignard reagent



Question No:4

Synergic bonding involves :-

[A] The transference of electrons from ligands to metal
[B] The transference of electrons from filled metal orbitals to anti–bonding orbitals of ligands
[C] Both the above
[D] None of these



Question No:5

Ferrocene is :-

[A] Fe(n⁵ – C ₅H₅ ) ₂
[B] Cr(n⁶ – C₆H₆) ₂
[C] K[PtCl ₃ (n² – C₂H₄)]
[D] (C₂H₅ ) ₄Pb



Question No:6

OMC form during purification of a metal is :-

[A] Ni(CO) ₄
[B] Pb(C₂H₅)₄
[C] Li–C₄H₉
[D] Na₂ [Ni(CN)₄]



Question No:7

Which of the following is not an organo metallic compound :-

[A] (C₂H₅)₂Zn
[B] CH₃B(OCH₃)₂
[C] B(OCH₃)₃
[D] Ni(CO)₄



Question No:8

The brown ring test for nitrites and nitrates is due to the formation of a complex ion with formula :-

[A] [Fe(H₂ O₅) NO⁺]²⁺
[B] [Fe(H₂ O) ₆] ²⁺
[C] [Fe(H₂ O)(NO) ₅ ] ^2–
[D] [Fe(NO)(CN) ₅] ²⁺



Question No:9

In a ferric salt on adding KCN a Prussian blue is obtained which is :-

[A] K₃[Fe(CN)₆]
[B] Fe₃ [Fe(CN)₆]₄
[C] FeSO₄[Fe(CN)₆]
[D] Fe₄[Fe(CN)₆]₃



Question No:10

Tollen’s reagent is :-

[A] [Ag(NH₃)₂] ⁺
[B] Ag₂O
[C] Al(OH) ₃
[D] [Au(CN) ₂] ^–



Question No:11

Nessler’s reagent is :-

[A] K₂HgI₄
[B] K₂HgI₄ + KOH
[C] K₂HgI₂+ KOH
[D] K₂HgI₄ + Hg



Question No:12

Hypo is used in photography because it is :-

[A] A strong reducing agent
[B] A strong oxidising agent
[C] A strong Complexing agent
[D] Photo sensitive Compound



Question No:13

The image on an exposed and developed photography film is due to :-

[A] AgBr
[B] [Ag(S₂O₃)₂]³⁺
[C] Ag
[D] Ag₂ O



Question No:14

The solubility of AgBr in hypo solution is due to the formation of :-

[A] Ag₂SO₃
[B] Ag₂S₂O₃
[C] [Ag(S₂O₃)]^–
[D] [Ag(S₂O₃)₂]^3–



Question No:15

A compound which is used in photography is :-

[A] AgCl
[B] AgBr
[C] AgNO₃
[D] Ag₂CO₃