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First three ionisation energies (in kJ/m...

First three ionisation energies (in kJ/mol) of three representative elements given below:

Then incorrect option is:

A

Q : Alkaline earth metal

B

P: Alkali metals

C

R: s-block element

D

They belong to same period

Text Solution

Verified by Experts

The correct Answer is:
C
R is p-block element, because difference between `IE_2` and `E_3` is not very high as compared to between `IE_1 " and " E_2` hence stable oxidation state of R will be higher than + 2
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VMC MODULES ENGLISH-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -LEVEL -2
  1. Consider the following ionisation reactions: If monovalent positi...

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  2. The incorrect statement is:

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  3. First three ionisation energies (in kJ/mol) of three representative el...

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  4. Which of the following statement is correct regarding following proces...

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  5. The correct order of increasing electron affinity of the following ele...

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  6. The second electron gain enthalpies (in kJ mol^(-1)) of oxygen and sul...

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  7. Which of the following statements is correct?

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  8. Which one of the following statements is incorrect?

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  9. The formation of the oxide ion O^(2-) (g) requires first an exothermic...

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  10. In which of the following processes, heat is neither absorbed nor rele...

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  11. The electron affinity of the following elements can be arranged:

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  12. In which of the following arrangements , the order is not correct acco...

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  13. Which of the following statements is/are wrong?

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  14. The stability of ions of Ge Sn and Pb will be in the order .

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  15. Select the correct statement(s)/order(s):

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  16. In the compound M – O – H, the M – O bond will be broken if:

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  17. Aqueou solutions of two compounds M-O-H and M'-O-H have been prepared ...

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  18. Consider the following ionization stesps: M(g) ot M^(+)(g)+e^(-)," ...

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  19. Consider the following statements : (I) The radius of an anion is la...

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  20. Which of the following order is correct for the property mentioned in ...

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