The common oxidation state of lanthanides is_________?

Related Mcqs:

1. The maximum oxidation shown by manages is_________?

   A. +2
   B. +4
   C. +5
   D. +7

   Submitted by: Muhammad Ali Kunbhar

2. The oxidation state of transition elements is usually _______________________?

   A. variable
   B. constant
   C. single
   D. infinite

3. Which one of the following element has highest oxidation state in its compounds ?

   A. Cr
   B. Mn
   C. Sn
   D. O

4. Oxidation state of an atom represents____________________?

   A. Number of electrons gained
   B. Number of electrons lost
   C. Apparent charge in compound
   D. Its vacancies

5. Sodium is not observed in +2 oxidation state because of its__________________?

   A. high first ionization potential
   B. high second ioniation potential
   C. high ionic radius
   D. high electronegativity

6. In which compound of Xenon the oxidation state of Xenon is + 6?

   A. XeF4
   B. XeOF4
   C. XeOF2
   D. Na4XeO6

7. Oxidation state +1 for phosphorous is found in___________?

   A. H3PO3
   B. H3PO4
   C. H3PO2
   D. H2P2O7

   Submitted by: Muhammad Ali Kunbhar

8. The oxidation state of cu which are expected to be diamagnetic

   A. Cu+2
   B. Cu+4
   C. Cu+1
   D. Cu+3

   Submitted by: Siddiqullah wazir

9. In K2Cr2O7 the oxidation number of chromium is____________________?

   A. 7
   B. 6
   C. -7
   D. -6

10. Lactic acid on oxidation by alkaline potassium permanganate gives:____________?

    A. Propionic acid
    B. Cinnamic acid
    C. Pyruvic acid
    D. Tartaric acid

    Submitted by: Said wali shah