https://www.geekmcq.com/

Entry Test MCQ :: Transition Elements


21.  Geometry of the complex compounds usually depends upon
A. type of ligands B. types of hybridization in the elements of ligands
C. hybridization of central metal D. All of above

22.  When the central atom of coordination compound is sp3d2 hybridization the expected geometry will be
A. tetrahedral B. square planar
C. trigonal bipyramidal D. octahedral

23.  In pig iron the concentration of C-atom is
A. 0.12 --- 0.25% B. 2.5 --- 4.5%
C. 2.0 --- 4.0% D. 0.25 --- 2.5%

24.  In the production of wrought iron Mg Si and P are removed in the form of
A. oxides B. silicates
C. slag D. carbonates

25.  With impurities like P and S the open hearth furnace is lined with.
A. SiO2 B. Fe2O3
C. FeO D. CaO MgO

26.  The oxidation number in [MnO4]-2
A. 7 B. ?7
C. 6 D. ?6

27.  Which is sold as fertilizer
A. CaSiO3 B. Na2SiO3
C. Ca3(PO4)2 D. MnSiO3

28.  Any process of chemical decay of metals due to the action of surrounding medium is called
A. activation B. enameling
C. corrosion D. coating

29.  When an active metal like Al comes in contact with less active element like Cu then it produces
A. dry cell B. galvanic cell
C. electrolytic cell D. a and b

30.  Which of the following is typical transition metal?
A. Sc B. Y
C. Cd D. Co




© 2012-2024 by GeekMCQ™ Technologies. All Rights Reserved | Copyright | Terms of Use & Privacy Policy

Contact us: info@geekmcq.com