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Which of the following statement(s) is/a...

Which of the following statement(s) is/are correct?

A

Ionization energy may be negative for some elements

B

Second electron gain enthalpy always remains positive for all the elements

C

Negative value of electron gain enthalpy of fluorine is minimum in its group

D

Ionization energy of Ga is slightly more than AI

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The correct Answer is:
B, D
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GRB PUBLICATION-PERIODIC TABLE-Multiple Objective Type
  1. Which of the following orders is correct for the size ?

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  2. In which of the following arrangements, the order is not correct accor...

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  3. Which of the following statement(s) is/are correct?

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  4. Ionisation energy of atoms A and B are 350 and 250 kcal mol^(-) respec...

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  5. Which of the following statements is/are true for the long form of the...

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  6. Which of the following statements is/are true about the modern form of...

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  7. The factors that influence the ionisation energies are:

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  8. Which of the following statement(s) is/are correct?

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  9. Ionization energy of an element is:

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  10. The properties which are common to both groups 1 and 17 elements in th...

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  11. Select the incorrect statement(s).

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  12. Which of the following order(s) is/are correct?

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  13. Which of the following is/are true order (s)?

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  14. Poor shielding of nuclear charge by d or f-orbital elements is respons...

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  15. Select equations having endothermic step:

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  16. Which is not correct order for the properties specified ?

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  17. Select the correct statement(s).

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  18. Degenerate orbital have:

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  19. Which of the following pairs were incorrectly arranged in Mendeleev's ...

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  20. Which option is correct for atomic radius?

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