Important Questions of The d-And-f-Block Elements Chemistry | Zigya

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

Advertisement
291.

The highest magnetic moment is shown by the transition metal ion with the configuration :

  • 3d2

  • 3d5

  • 3d7

  • 3d9


292.

A transition metal ion exists in its highest oxidation state .It is expected to behave as :

  • a chelating agent

  • a central metal in a coordination compound

  • an oxidising agent

  • a reducing agent


293.

The flame colours of metal ions are due to

  • Frenkel defect

  • Schottky defect

  • metal deficiency defect

  • metal excess defect.


294.

Which radioactive element is being used in cancer therapy ?

  • Co2760

  • Ni2862

  • Ba56140

  • P1532


Advertisement
295.

Which of the following is not an actinide ?

  • Curium

  • Californium

  • Uranium

  • Terbium


296.

Europium is :

  • s - block element

  • p - block element

  • d - block element

  • f - block element


297.

Assertion : Cu(OH)2 is soluble in NH4OH but not in NaOH.

Reason : Cu(OH)2 forms a soluble complex with NH3.

  • If both assertion and reason are true and reason is the correct explanation of assertion

  • If both assertion and reason are true but reason is not the correct explanation of assertion

  • If assertion is true but reason is false

  • If both assertion and reason are false.


298.

Number of unpaired electrons in Mn4+ is :

  • 3

  • 5

  • 6

  • 4


Advertisement
299.

Cyanogen gas is obtained in the reaction

  • CuSO4 (aq) + KCN 

  • K4[Fe(CN)6heat

  • CH3CN + H2

  • CH3CONH2 + P2O5 


300.

Assertion : Copper sulphate solution is not stored in zinc vessel.

Reason : Zinc forms complex with CuSO4.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


Advertisement