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

Related Mcqs:

1. Which specie has unpaired electrons in antibonding molecular orbitals_______________?

   A. O2+2
   B. N2-2
   C. B2
   D. O2-2

2. A specie with maximum number of unpaired electrons ?

   A. F
   B. H2O
   C. HF
   D. NH-2

3. 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

4. The central atom along with ligands is called____________________?

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

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

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

6. Energy released or absorbed when electrons are added in atom is_________________?

   A. Ionization potential
   B. Electronegativity
   C. Electron affinity
   D. Activation energy

7. An atom loses or gains electrons to__________________?

   A. Gain stability
   B. Form a bond
   C. Complete its outermost shell
   D. all are accurate justifications

8. Sharing of 1 electron pair by one specie forms_________________?

   A. Single covalent bond
   B. Hydrogen bond
   C. Double covalent bond
   D. Coordinate covalent bond

9. Geometry of molecule will be pyramidal if the outer post shell of the central atom has___________________?

   A. 3 bond pair one lone pair
   B. 2 bond pair 2 lone pair
   C. 1 bond pair 3 lone pair
   D. 3 lone pair 1 bond pair

10. When light is exposed to transition element then electrons jump from lower orbitals to higher orbitals in______________________?

    A. orbitals of f-subshell
    B. orbitals of d-subshell
    C. orbitals of p-subshell
    D. both A & B