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The +1 oxidation state of thallium is m...

The +1 oxidation state of thallium is more stable than its +3 oxidation state because of

A

its atomic size

B

its ionization potential

C

inert pair effect

D

diagonal relationship

Text Solution

Verified by Experts

The correct Answer is:
C
Inert pair effect.
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PRADEEP-SOME p-BLOCK ELEMENTS-Competition Focus (JEE( Main and Advanced)/Medical Entrance) (1. Multiple Choice Questions) I. Group 13 Elements
  1. The correct order of atomic radii in group 13 elements is

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  2. The stability of +1 oxidation state among Al, Ga, In and Tl increases ...

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  3. The +1 oxidation state of thallium is more stable than its +3 oxidati...

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  4. The ion(s) that act/s as oxidizing agent in solution is/are

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  5. For BCl(3), AlCl(3) and GaCl(3) the increasing order of ionic characte...

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  6. For the properties mentioned, the correct trend for the different spec...

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  7. Which of the following is similar to graphite ?

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  8. Which of the following is known as inorganic graphite?

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  9. Heating an aqueous solution of aluminium chloride to dryness will give

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  10. Al(2)O(3) becomes anhydrous AlCl(3) upon heating

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  11. Conc. HNO(3) can be stored in a container made of

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  12. Which of the following statement is incorrect?

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  13. When metal 'M' is treated with NaOH, a white gelatinous precipitate ...

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  14. AlF(3) soluble in HF only in presence of KF. It is due to the formatio...

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  15. The tendency of BF(3), BCl(3) and BBr(3) behave as Lewis acid decrease...

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  16. Which one of the following has highest Lewis acid strength ?

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  17. the correct statement is

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  18. Which of the following are Lewis acids?

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  19. Which of the following is a Lewis acid ?

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  20. The bond dissociation energy of B-F in BF(3) is "646 kJ mol"^(-1) wher...

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