New ! Chemistry MCQ Practise Tests



Transition and Inner Transition Elements 5 Mark Creative Question Paper With Answer Key

12th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Chemistry

Time : 01:30:00 Hrs
Total Marks : 50

    5 Marks 

    10 x 5 = 50
  1. Predict which of the following will be coloured in aqueous solution Ti2+, V3+, Sc4+, Cu+, Sc3+, Fe3+, Ni2+ and Co3+

  2. Justify the following statement.
    "Elements of the first transition series possess many properties different from those of heavier transition elements".

  3. Why is there a variation of atomic andionic size as we move from Sc to Zn?

  4. Write a note on the ionization enthalpy of transition elements.

  5. Write a short note on the oxidation states of 3d series elements.

  6. How are materials classified based on their magnetic properties?

  7. Complete the following reactions
    (i) Cr2O72-
    (ii) Cr2O72- + 6I-+ 14H+ ⟶
    (iii)  Cr2O72-+ 3S2-+ 14H+ ⟶
    (iv) Cr2O72- + 3SO+ 2H+
    (v) Cr2O72- + 3Sn2+ + 14H+ ⟶
    (vi) K2Cr2O7 + 8H2SO4 + 3CH3CH2OH ⟶
    (vii) 2MnO4- + 5(COO)2- + 6H+ ⟶
    (viii) 2MnO4- + 10I+ 16H+
    (ix) 2MnO4- + 5S2-+ 16H+ ⟶
    (x) 2MnO4- + 5NO2- + 6H+ ⟶
    (xi) 2KMnO4 + 3H2SO4 + 5CH3CH2OH ⟶
    (xii) 2MnO4- + 5SO32- + 6H+

  8. Describe the preparation of potassium dichormate.

  9. Discuss the oxidising property of \(\mathrm{KMnO}_4\) in different media. Give the examples.

  10. Discuss the oxidising property of potassium dichromate.

*****************************************

Reviews & Comments about 12th Standard Chemistry English Medium - Transition and Inner Transition Elements 5 Mark Creative Question Paper and Answer Key 2022 - 2023

Write your Comment