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

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The first ionisation energy in $eV$ of $N and O$ are respectively given by:

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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 9

As one moves down the group from top to bottom, then which one among the following will not be observed?

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 10

Which of the following relation is correct with respect to the first (I) and second (II) ionization energies of sodium and magnesium?

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 11

The ionization energy will be higher when the electron is removed from .............. if other factors are equal.

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 12

Which of the following isoelectronic ion has the lowest

1^{st}

ionization energy?

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 13

A large difference between the third and fourth ionization energies indicates the presence of:

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 14

For electron affinity of halogens which of the following is correct?

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 15

Which of the following is the correct order of ionisation energy:
(1)

{Be}^{+} > Be

(2)

Be > {Be}^{+}

(3)

C > Be

(4)

B > Be

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Practice Book for KVPY Aptitude Test - Stream SA Chemistry>Chapter 8 - Periodic Table & Periodicity>EXERCISE>Q 16

The correct order of the electronegativity is: