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The decreasing order of the first ioniza...

The decreasing order of the first ionization energy in `kJmol^(-1)` of He, Mg and Na is He > Mg > Na. The increasing order of second ionization energy in of these elements will be 

A

Na lt Mg lt He

B

Mg lt Na lt He

C

Mg lt He lt Na

D

Na lt He lt Mg

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The correct Answer is:
B
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AAKASH SERIES-PERIODIC CLASSIFICATION-OBJECTIVE EXERCISE - 2 (IONISATION POTENTIAL)
  1. IP1 and IP2 of Mg are 178 and 348 "k cal mol"^(-1). The energy require...

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  2. Among the elements A, B, C and D having atomic numbers 7,8,9 and 12 th...

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  3. Correct order of first ionisation potentials

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  4. The first ionisation potentials of four consecutive elements present i...

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  5. The decreasing order of second ionisation potential of K, Ca, Ba is

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  6. The incorrect order of second ionization energies in the following is

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  7. Ionisation energy of F^- is equal in magnitude with the electron affin...

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  8. Some statements are given. Among them the correct statements are (a...

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  9. (IE)1 and (IE)2 of Mg((g)) are 740, 1540 kJ mol^(-1) . Calculate perce...

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  10. Successive ionisation potentials of an element M are 8.3, 25.1, 37.9, ...

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  11. The decreasing order of the first ionization energy in kJmol^(-1) of H...

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  12. In a period from left to right A) nuclear charge increases B) eff...

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  13. If the lonisation potential (I.P.) of Na is 5.48 eV. The I.P. of K wil...

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  14. A sudden jump between the values of second and third ionisation energi...

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  15. Amongst the following elements (whose electronic configurations are gi...

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  16. The first ionization energy of Lithium will be

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  17. A sudden jump between the values of second and third ionisation energi...

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  18. Generally the ionisation potential in a period increases, but there ar...

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  19. Element that has the highest first ionisation energy among the followi...

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  20. The ionization potential of nitrogen is more than that of oxygen becau...

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