Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 34

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$K^{+}, {Cl}^{-}, {Ca}^{2 +}, S^{2 -}$ ions are isoelectronic. The decreasing order of their size is

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Important Questions on Periodic Table & Periodicity

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 35

In which of the following compound manganese shows maximum radius?

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 36

Select correct statement:

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 37

{IE}_{1}, {IE}_{2}

and

{IE}_{3}

of an element are

9.32, 18.21

and

153.83 eV

. What information this data convey

?

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 38

Which of the following element has the maximum, first ionisation potential?

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 39

An element having the highest first ionization energy in a given period is

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 40

Ionisation potential of

Na

would be numerically the same as:

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 41

Minimum first ionisation energy is shown by which electronic configuration

?

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 42

Electron gain enthalpy is positive when