In pig iron the concentration of C-atom is ___________________?

Related Mcqs:

1. A sample of an iron and oxygen ore has a mass of 35.8 grams. The iron in the compound has a mass of 27.9 grams. What is the percent iron in the ore?

   A. 74% Fe
   B. 75% Fe
   C. 77% Fe
   D. 78% Fe

   Submitted by: Muhammad Ali Kunbhar

2. The oxidation number of central metal atom in [Ni(CO)4] is_________________?

   A. 0
   B. 2
   C. 4
   D. 6

3. The specie which donates electrons to central metal atom in coordination sphere is called____________________?

   A. anion
   B. cation
   C. Ligand is positively charged
   D. acid

4. The central atom along with ligands is called____________________?

   A. complex ion
   B. coordination sphere
   C. ligand
   D. complex compound

5. 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

6. Diameter of an atom is in the order of________________?

   A. 0.2m
   B. 0.2mm
   C. 0.2nm
   D. 0.2pm

7. 2nd orbit is ___________ away from nucleus of H-atom as compared to 1st orbit is ?

   A. 2-times
   B. 3-times
   C. 4-times
   D. 6 times

8. In O2 each oxygen atom is hybridized_________________?

   A. sp3
   B. sp2
   C. sp
   D. All

9. nergy of atom in compound is___________________?

   EA. Higher than individual
   B. Lesser than individual
   C. No change
   D. Impossible to predict

10. Electronic Configuration of Calcium (Ca) atom may be written as________?

    A. Ne, 4p2
    B. Ar, 4s2
    C. Ne, 4s2
    D. Kr,4p2

    Submitted by: Muhammad Ali Kunbhar