Test 12 sp Blocks & Transition Elements + GK7 Part 1
The correct increasing order of splitting power of ligands according to spectrochemical series is? a) Cl– < OH– < CN– b) Cl– < CN– < OH– c) OH– < Cl– < CN– d) none of these
Tetraamminecopper(II) sulphate is _ in colour. (PPSC 2015)? a) violet b) blue c) green d) red
Transition elements exhibit variable valency because they release electrons from? a) ns orbitals b) (n-1)d orbitals c) (n-1)d & ns orbitals d) none of these
The compound, which does not contain a metal-carbon bond is? a) Al(OC2H5)3 b) C2H5MgBr c) Ni(CO)4 d) none of these
The coordination number of the transition element in [Pt Cl NO2 (NH3)4]2- is (PPSC 2017)? a) 2 b) 6 c) 4 d) 8
For K2 (Cu(CN)4) which one is correct? a) Potassium tetra cyano recuperate b) Co-ordination number is 2 c) The ligand is positively charged d) none of these
The melting points and boiling points up to the middle of 3d- series? a) Increases Then decreases b) Decreases c) Remain same d) No regular trend
When light is exposed to transition element then electrons jump from lower orbitals to higher orbitals in that show color? a) Orbitals of f-subshell b) Orbitals of d-subshell c) none of these d) Both A & B
Non-stoichiometric compounds of transition elements are called (PPSC 2020)? a) Hydrates b) Hydrides c) Interstitial compounds d) None of these
Which of the following can form a chelate (PPSC 2021)? a) Ammine b) Oxalate c) Carbonyl d) Cyano
Which of the following d orbitals take part in the octahedral complex with d2sp3 hybridisation? (PPSC 2017)? a) dxy, dyz b) dxz, dx2−y2 c) dx2−y2, dz2 d) dz2, dxz
When the central atom of coordination compound is sp3d2 hybridization the expected geometry will be (PPSC 2021)? a) Tetrahedral b) Square planar c) Trigonal bipyramidal d) Octahedral
In the production of wrought iron Mg, Si and P are removed in the form of? a) Oxides b) Silicates c) Slag d) none of these
Which of the following is a bidentate ligand? (PPSC 2017)? a) CH3NH2 b) C2O42- c) CH3CN d) all of these
Which of the following is typical transition metal? (PPSC 2017)? a) Sc b) Y c) Cd d) Co
What is the formula of hematite? a) Fe3O4 b) FeSO4.7H2O c) Fe2O3 d) FeCl3
Which compound forms double salt with sulphates of alkali metals? (PPSC 2021)? a) Ferric oxide b) Silver nitrate c) Ferric chloride d) Ferrous sulphate
Which of the following is why the atomic radii of the second and third transition series are almost same? a) Actinoid contraction b) Filled d-orbital c) Lanthanoid contraction d) none of these
Which of the following is not a very hard metal?19. Which of the following is not a very hard metal? a) Chromium b) Molybdenum c) Tungsten d) Zinc
Some salts containing two different metallic elements give test for only one of them in solution, such salts are? a) double salts b) normal salts c) complex salts d) None of these
