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The effective nuclear charge across the ...

The effective nuclear charge across the period (from left to right)

A

Decreases

B

Increases

C

First decreases and then increases

D

First increases and then decreases

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The correct Answer is:
b
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SURA PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-ADDITIONAL CHOOSE THE CORRECT ANSWER
  1. Which of the following factor decreases across the period ?

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  2. Ionisation enthalpy is an process

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  3. The effective nuclear charge across the period (from left to right)

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  4. Which of the following N^(3-),O^(2-),F^(-) is largest in size?

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  5. The radii of F, F^(-) , O andO^(2-) are in the order

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  6. Which of the following atom has the lowest ionization enthalpy?

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  7. Which of the following has the highest positive electron gain enthalpy...

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  8. Which of the following statements is incorrect ?

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  9. Correct order of 1st ionization potential among elements Be,B,C,N,O is

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  10. The most electronegative element of the periodic table is

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  11. Assertion (A) : The first ionization energy of Al is lower than Mg. ...

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  12. Ionic radii are

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  13. Which of the following sets contain only isoelectionic ions?

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  14. With repect to chlorine ,hydrogen will be

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  15. Which orbital diagram gives an insight to the highest ionization ene...

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  16. Among the elements given below has the highest value of electronegativ...

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  17. Pick the incorrect statement about the factors affecting ionization en...

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  18. Statements I : Noble gases have zero electron gain enthlpy. Statem...

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  19. The relative tendency of a bonded atom in a molecule to attract the sh...

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  20. Which of the following property has no unit ?

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