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IP1 and IP2 of Mg are 178 and 348 "k cal...

`IP_1 and IP_2` of Mg are 178 and `348 "k cal mol"^(-1)`. The energy required for the reaction `Mg to Mg^(2+) + 2e^(-)` is 

A

`+1720K.cal `

B

`+526K.cal `

C

`-170K.cal`

D

`-526K.cal`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-PERIODIC CLASSIFICATION-OBJECTIVE EXERCISE - 2 (IONISATION POTENTIAL)
  1. Second ionisation potential of oxygen is

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  2. I1, I2, I3, of an element are 176, 346 and 1850K.cals respectively. Th...

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  3. IP1 and IP2 of Mg are 178 and 348 "k cal mol"^(-1). The energy require...

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

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  5. Correct order of first ionisation potentials

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

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

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

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

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

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

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

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

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

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

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

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

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  18. The first ionization energy of Lithium will be

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

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

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