Punjab 12th Class Chemistry d and f Block Elements Mcqs Test Online Punjab 12th Class Chemistry d and f Block Elements Mcqs Test Online 1234567891011121314151617181920Show paginator Hide paginator Question 1 of 20Chemistry 1. The color of Mn²⁺in hydrated form is: 1.Blue 2.Green 3.Light Pink 4.Yellow Question 1 of 20Question 2 of 20 2. The complexes having coordination number (C.N) = 4 have geometry: 1.Tetrahedral 2.Square plane 3.Linear 4.Both a and cQuestion 2 of 20Question 3 of 20 3. Coinage metals are actually 1.Halogens 2.Alkaline eavthmetals 3.Alkali metals 4.Transition metals Question 3 of 20Question 4 of 20 4. Give the systematic name for Fe(CO)₅ 1.Pentacarbonyl ferrate (III)2.Pentacarbonyl iron (III) 3.Pentacarbonyl iron (II) 4.Pentacarbonyl iron (o) Question 4 of 20Question 5 of 20 5. Following element shows maximum number of oxidation states? 1.Cr 2.Mn 3.Fe 4.Cr² Question 5 of 20Question 6 of 20 6. Which element form elloy: 1.Halogen 2.Transition elements3.Alkaline earth metals 4.Alkali metals Question 6 of 20Question 7 of 20 7. Which of the following metals show more than one oxidation state? 1.Fe 2.Ca3.Mg 4.Al Question 7 of 20Question 8 of 20 8. Zinc is a transition element but it does not show variable valency because: 1.It has completely filled d-subshell 2.Has two electrons in outer most orbit 3.It does not form colored salts 4.It has incomplete d-subshell Question 8 of 20Question 9 of 20 9. Magnetic moment (u) of an atom or ion is the measure of its number of unpaired: 1.Nucleons2.Proton 3.Neutron 4.Electron Question 9 of 20Question 10 of 20 10. Which metal oxide is used in contact process as a catalyst: 1.Mn 2.Cu 3.V 4.Cr Question 10 of 20Question 11 of 20 11. Which are repelled by magnetic field? 1.Ferromagnetic 2.Paramagnetic 3.None4.Diamagnetic Question 11 of 20Question 12 of 20 12. If we add HNO3 to the original vanadium (II) solution, it produces 1.Green ions 2.Blue ions 3.Dull grey blue ions 4.Pink ions Question 12 of 20Question 13 of 20 13. Iron is used as a catalyst in: 1.Both b and c2.Brikland Process 3.Haber process 4.Contact Process Question 13 of 20Question 14 of 20 14. Which of the following is non-typical transition element? 1.Fe 2.Zn 3.Mn 4.Cr Question 14 of 20Question 15 of 20 15. Acidified potassium permanganate act as a strong 1.Oxidizing agent 2.Hydrolyzing agent3.Reducing agent 4.Electrolytic agent Question 15 of 20Question 16 of 20 16. During the reaction of Ammonia with iron, it acts as both a base and a: 1.Iron 2.Ligand 3.Acid 4.Salt Question 16 of 20Question 17 of 20 17. In oxidation of chromium (III) to chromium (VI) the green color will change into: 1.Colorless 2.Bright yellow 3.Pink 4.None Question 17 of 20Question 18 of 20 18. The unit of magnetic moment is 1.Coulombs (Q) 2.Bohr magneton (BM) 3.Ampers (A) 4.Watts (W) Question 18 of 20Question 19 of 20 19. Give the chemical formula of a complex compound sodium monochloropnetacyanoferrate (III). 1.Na₃[FeCl(CN)₅)] 2.Na₂[FeCl(CN)₅)] 3.Fe₃[NaCl(CN)₅)] 4.[Na₃FeCl(CN)₅)] Question 19 of 20Question 20 of 20 20. Bronze alloy contains: 1.Cu and Zn 2.Cu and Sn 3.Ni and Cr 4.Cr and Fe Question 20 of 20 Loading... Test By Subject Punjab Test By Topics 12th Class Chemistry You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.