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Why is the second electron gain enthalpy...

Why is the second electron gain enthalpy negative (i.e. energy is absorbed)?

A

is always negative

B

is always positive

C

can be positive or negative

D

is always zero

Text Solution

Verified by Experts

The correct Answer is:
B
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VK JAISWAL-PERIODIC PROPERTIES-Level 1
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  2. Which of the following electronic configurations has the lowest value ...

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  3. Why is the second electron gain enthalpy negative (i.e. energy is abs...

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  4. The element having very high ionization enthalpy but zero electron af...

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  5. Which of the following represents correct order of electron affinity?

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  6. The process requiring absorption of energy is:

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  7. The electronegativity of the following elements increases in the order...

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  8. Which of the following order is incorrect?

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  9. Correct expression of "allred and Rochow's " scale is :

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  10. The hydration energy of Mg^(2+) ions is lesser than that of:

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  11. Among the following, which the maximum hydration energy?

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  12. Which of the following is arranged in order of incresing radius?

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  13. Which of the following compounds has a negative enthalpy of solution?

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  14. Amongst sodium halides {NaF,NaCl, NaBr and NaI), NaF has the highest m...

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  15. Among the following oxides, which has the maximum lattice energy?

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  16. Which of the following compounds has a positive enthalpy of solution?

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  17. Born-Haber cycle is used to determine

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  18. Which of the following is different from other three oxides?

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  19. Select the amphoteric substance in the following:

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  20. Which of the following compound is most acidic?

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