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The first ionisation potential of Na,Mg,...

The first ionisation potential of `Na,Mg,Al` and `Si` are in the order

A

`Na lt Mg gt Allt Si`

B

`Na gt Mg gt Al gt Si`

C

`Na lt Mg lt Al lt Si`

D

`Na gt Mg gt Al lt Si`

Text Solution

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The correct Answer is:
A
I.E. of `Na lt Mg lt Al`
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NARAYNA-CLASSIFICATION OF ELEMENTS AND PERIODICITY -EXERCISE - 1 (C.W)
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  11. Which of the following represents the correct order of increasing firs...

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

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  15. Which of the following represents the correct order of increasing elec...

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  16. The order of electron gain enthalpy (magnitude) of O, S and Se is:

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  17. The outermost electronic configuration of the least reactive element i...

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  18. Which one of the following is incorrect ?

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  19. Pauling 's electronegativity scale is based upon experimental values o...

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  20. Increasing order of electronegativity is

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