04. Ionization Energy
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Classification of Elements and Periodicity in Properties

89600 B has a smaller first ionisation enthalpy than Be. Consider the following statements:
(I) It is easier to remove $2 p$ electron than $2 \mathrm{~s}$ electron
(II) $2 p$ electron of $B$ is more shielded from the nucleus by the inner core of electrons than the $2 s$ electrons of $B e$
(III) 2s electron has more penetration power than 2p electron
(IV) atomic radius of $B$ is more than $B e$
(atomic number $B=5, B e=4$ )
The correct statements are

1 (I), (II) and (III)
2 (II), (III) and (IV)
3 (I), (III) and (IV)
4 (I), (II) and (IV)
(JEE Main 2020
Classification of Elements and Periodicity in Properties

89601 The first and second ionisation enthalpies of a metal are 496 and $4560 \mathrm{~kJ} \mathrm{~mol}^{-1}$, respectively. How many moles of $\mathrm{HCl}$ and $\mathrm{H}_2 \mathrm{SO}_4$, respectively, will be needed to react completely with 1 mole of the metal hydroxide?

1 1 and 2
2 1 and 1
3 2 and 0.5
4 1 and 0.5
(JEE Main 2020
Classification of Elements and Periodicity in Properties

89606 The first ionization enthalpy of the following elements are in the order:

1 C $<$ N $<$ Si $<$ P
2 P $<$ Si $<$ N $<$ C
3 P $<$ Si $<$ C $<\mathrm{N}$
4 Si $<$ P $<$ C $<\mathrm{N}$
Karnataka-CET-2019
Classification of Elements and Periodicity in Properties

89607 Which of the following has highest second ionisation energy :

1 Chromium
2 Calcium
3 Iron
4 Cobalt
Manipal-2019
For More Updates join with Us
Classification of Elements and Periodicity in Properties

89600 B has a smaller first ionisation enthalpy than Be. Consider the following statements:
(I) It is easier to remove $2 p$ electron than $2 \mathrm{~s}$ electron
(II) $2 p$ electron of $B$ is more shielded from the nucleus by the inner core of electrons than the $2 s$ electrons of $B e$
(III) 2s electron has more penetration power than 2p electron
(IV) atomic radius of $B$ is more than $B e$
(atomic number $B=5, B e=4$ )
The correct statements are

1 (I), (II) and (III)
2 (II), (III) and (IV)
3 (I), (III) and (IV)
4 (I), (II) and (IV)
(JEE Main 2020
Classification of Elements and Periodicity in Properties

89601 The first and second ionisation enthalpies of a metal are 496 and $4560 \mathrm{~kJ} \mathrm{~mol}^{-1}$, respectively. How many moles of $\mathrm{HCl}$ and $\mathrm{H}_2 \mathrm{SO}_4$, respectively, will be needed to react completely with 1 mole of the metal hydroxide?

1 1 and 2
2 1 and 1
3 2 and 0.5
4 1 and 0.5
(JEE Main 2020
Classification of Elements and Periodicity in Properties

89606 The first ionization enthalpy of the following elements are in the order:

1 C $<$ N $<$ Si $<$ P
2 P $<$ Si $<$ N $<$ C
3 P $<$ Si $<$ C $<\mathrm{N}$
4 Si $<$ P $<$ C $<\mathrm{N}$
Karnataka-CET-2019
Classification of Elements and Periodicity in Properties

89607 Which of the following has highest second ionisation energy :

1 Chromium
2 Calcium
3 Iron
4 Cobalt
Manipal-2019
NEET DIGITAL LIBRARY
Classification of Elements and Periodicity in Properties

89600 B has a smaller first ionisation enthalpy than Be. Consider the following statements:
(I) It is easier to remove $2 p$ electron than $2 \mathrm{~s}$ electron
(II) $2 p$ electron of $B$ is more shielded from the nucleus by the inner core of electrons than the $2 s$ electrons of $B e$
(III) 2s electron has more penetration power than 2p electron
(IV) atomic radius of $B$ is more than $B e$
(atomic number $B=5, B e=4$ )
The correct statements are

1 (I), (II) and (III)
2 (II), (III) and (IV)
3 (I), (III) and (IV)
4 (I), (II) and (IV)
(JEE Main 2020
Classification of Elements and Periodicity in Properties

89601 The first and second ionisation enthalpies of a metal are 496 and $4560 \mathrm{~kJ} \mathrm{~mol}^{-1}$, respectively. How many moles of $\mathrm{HCl}$ and $\mathrm{H}_2 \mathrm{SO}_4$, respectively, will be needed to react completely with 1 mole of the metal hydroxide?

1 1 and 2
2 1 and 1
3 2 and 0.5
4 1 and 0.5
(JEE Main 2020
Classification of Elements and Periodicity in Properties

89606 The first ionization enthalpy of the following elements are in the order:

1 C $<$ N $<$ Si $<$ P
2 P $<$ Si $<$ N $<$ C
3 P $<$ Si $<$ C $<\mathrm{N}$
4 Si $<$ P $<$ C $<\mathrm{N}$
Karnataka-CET-2019
Classification of Elements and Periodicity in Properties

89607 Which of the following has highest second ionisation energy :

1 Chromium
2 Calcium
3 Iron
4 Cobalt
Manipal-2019
Join With Us for More Updates
Classification of Elements and Periodicity in Properties

89600 B has a smaller first ionisation enthalpy than Be. Consider the following statements:
(I) It is easier to remove $2 p$ electron than $2 \mathrm{~s}$ electron
(II) $2 p$ electron of $B$ is more shielded from the nucleus by the inner core of electrons than the $2 s$ electrons of $B e$
(III) 2s electron has more penetration power than 2p electron
(IV) atomic radius of $B$ is more than $B e$
(atomic number $B=5, B e=4$ )
The correct statements are

1 (I), (II) and (III)
2 (II), (III) and (IV)
3 (I), (III) and (IV)
4 (I), (II) and (IV)
(JEE Main 2020
Classification of Elements and Periodicity in Properties

89601 The first and second ionisation enthalpies of a metal are 496 and $4560 \mathrm{~kJ} \mathrm{~mol}^{-1}$, respectively. How many moles of $\mathrm{HCl}$ and $\mathrm{H}_2 \mathrm{SO}_4$, respectively, will be needed to react completely with 1 mole of the metal hydroxide?

1 1 and 2
2 1 and 1
3 2 and 0.5
4 1 and 0.5
(JEE Main 2020
Classification of Elements and Periodicity in Properties

89606 The first ionization enthalpy of the following elements are in the order:

1 C $<$ N $<$ Si $<$ P
2 P $<$ Si $<$ N $<$ C
3 P $<$ Si $<$ C $<\mathrm{N}$
4 Si $<$ P $<$ C $<\mathrm{N}$
Karnataka-CET-2019
Classification of Elements and Periodicity in Properties

89607 Which of the following has highest second ionisation energy :

1 Chromium
2 Calcium
3 Iron
4 Cobalt
Manipal-2019
For More Updates join with Us