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Which of the following represents the co...

Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se and Ar?

A

Ca `lt` S `lt` Ba `lt` Se `lt` Ar

B

S `lt` Se `lt` Ca `lt` Ba `lt` Ar

C

Ba `lt` Ca `lt` Se `lt` S `lt` Ar

D

Ca `lt` Ba `lt` S `lt` Se `lt` Ar.

Text Solution

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The correct Answer is:
C
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ICSE-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-OBJECTIVE (MULTIPLE CHOICE) TYPE QUESTIONS
  1. The correct order of first ionisation potential is

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  2. Among the following complex ions, the species whose central metal atom...

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  3. According to the periodic law of elements, the variation in properties...

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  4. The atomic numbers of vanadium (V), chromium (Cr), manganese (Mn) and ...

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  5. Which one of the following ions has the highest value of ionic radius?

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

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  7. Fluorine is the best oxidising agent because it has

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  8. The first ionisation enthalpy of the elements C,N,P,Si are in the orde...

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  9. Following statements regarding the periodic trends of chemical reactiv...

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  10. The increasing order of the ionic radii of the given isoelectronic spe...

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  11. Correct order of electron gain enthalpy (Kj/mole) of F, Cl, Br, I

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  12. The correct sequence which shows decreasing order of the ionic radii o...

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  13. Correct order of radii

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  14. Which of the following represents the correct order of increasing firs...

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  15. The first ionisation potential of Na is 5.1eV. The value of electron g...

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  16. Elements upto atomic number 105 have been discovered till now. If an e...

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  17. The correct order of atomic radii in group 13 elements is

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  18. For the second period elements the correct increasing order of first i...

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  19. The element which has highest 2nd ionisation energy is

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  20. The IUPAC symbol for the element with atomic number 119 would be:

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