EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 12 - Classification of Elements and Periodicity in Properties>JEE Main - 7th January 2020 Shift 2>Q 19

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IMPORTANT

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Within each pair of elements $F$ and $C l$ , $S$ and $S e$ , and $Li$ and $Na$ , respectively, the elements that release more energy upon an electron gain are

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Important Questions on Classification of Elements and Periodicity in Properties

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 12 - Classification of Elements and Periodicity in Properties>JEE Main - 7th April 2013>Q 20

The first ionisation potential of Na is 5.1 eV. The value of electron gain enthalpy of Na ⁺ will be :

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 12 - Classification of Elements and Periodicity in Properties>JEE Main - 7th April 2013>Q 21

Which of the following represents the correct order of increasing first ionization enthalpy for

Ca, Ba, S, Se and Ar

?

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 12 - Classification of Elements and Periodicity in Properties>JEE Main - 6 September 2020 Shift 2>Q 22

The atomic number of Unnilumium is ______.

EASY

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 12 - Classification of Elements and Periodicity in Properties>JEE Main - 6 September 2020 Shift 1>Q 23

The set that contains atomic numbers of only transition elements, is :

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 12 - Classification of Elements and Periodicity in Properties>JEE Main - 5 September 2020 Shift 2>Q 24

The correct order of the ionic radii of

O^{2 -}, N^{3 -}, F^{-}, {Mg}^{2 +}, {Na}^{+}

and

{Al}^{3 +}

is :

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 12 - Classification of Elements and Periodicity in Properties>JEE Main - 4th April 2015>Q 25

The ionic radii

(in Å)

of

N^{3 -}, O^{2 -}

and

F^{-}

are respectively:

EASY

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 12 - Classification of Elements and Periodicity in Properties>JEE Main - 4 September 2020 Shift 2>Q 26

The process that is NOT endothermic in nature is :

EASY

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 12 - Classification of Elements and Periodicity in Properties>JEE Main - 4 September 2020 Shift 1>Q 27

The elements with atomic numbers

101

and

104

belong to, respectively: