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Select equation having exothermic step:...

Select equation having exothermic step:

A

`S_((g))^(-) to S_((g))^(2-)`

B

`O_((g)) to O_((g))^(-)`

C

`N_((g)) to N_((g))^(-)`

D

`Al_((g))^(2+) to Al_((g))^(3+)`

Text Solution

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The correct Answer is:
B
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ALLEN-Periodic Table -All Questions
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  2. Which one of the following statements is incorrect in relation to ioni...

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  3. The IP(1),IP(2),IP(3),IP(4) and IP(5) of an element are 7.1, 14.3, 34....

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  4. Which process required maximum energy :-

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  5. To which the following atom, the attachment of electron is most diffic...

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

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  7. Which of the following statement is correct regarding following proces...

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  8. Select equation having exothermic step:

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  9. Electron affinity of :

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  10. An atom with high electronegativity generally has :-

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  11. Assertion :- Cr belong to 4th period Reason :- Cr atom contain 4 sh...

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  12. Assertion :- First electrons affinity fo all element is positive. Re...

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  13. Assertion :- The first ionization energy of Be is greater than that of...

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  14. Assertion:- Mg^(2+) is smaller atomic size then F^(-) Resaon :- Mg...

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  15. Assertion :- He has highest I.E among all elements. Reason :- He ha...

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  16. Assertion :- Metallic character increases on going down the group R...

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  17. Assertion :-HCl is more polar than HF. Reason :- Cl has more E.N. t...

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  19. Match the following columns

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  20. Match the following columns

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