01. Periodic Laws
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Classification of Elements and Periodicity in Properties

89409 In the periodic table from left to right in a period, the atomic volume
3. Atomic and Ionic Radii

1 decrease
2 increase
3 remains same
4 first decrease then increase
NEET-1993
Classification of Elements and Periodicity in Properties

89408 In the periodic table from left to right in a period, the atomic volume
3. Atomic and Ionic Radii

1 decrease
2 increase
3 remains same
4 first decrease then increase
NEET-1993
Classification of Elements and Periodicity in Properties

89338 The long form of periodic Table is based on

1 mass of the atom
2 atomic number
3 shapes of the atom
4 electronegegativity
AIIMS-1994
Classification of Elements and Periodicity in Properties

89390 The stability of ferric ion is due to :

1 half filled $f$ - orbitals
2 half filled d- orbitals
3 completely filled f-orbitals
4 completely filled d- orbitals
BCECE-2006
Classification of Elements and Periodicity in Properties

89339 Given below are two statements:
One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) Metallic character decreases and non-metallic character increases on moving from left to right in a period.
Reason (R) It is due to increase in ionisation enthalpy and decrease in electron gain enthalpy, when one moves from left to right in a period.
In the light of the above statements, choose the most appropriate answer from the options given below.

1 (A) is false but (R) is true
2 (A) is true but (R) is false
3 Both (A) and (R) are correct and (R) is the correct explanation of (A)
4 Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(JEE Main 2021
Join With Us for More Updates
Classification of Elements and Periodicity in Properties

89409 In the periodic table from left to right in a period, the atomic volume
3. Atomic and Ionic Radii

1 decrease
2 increase
3 remains same
4 first decrease then increase
NEET-1993
Classification of Elements and Periodicity in Properties

89408 In the periodic table from left to right in a period, the atomic volume
3. Atomic and Ionic Radii

1 decrease
2 increase
3 remains same
4 first decrease then increase
NEET-1993
Classification of Elements and Periodicity in Properties

89338 The long form of periodic Table is based on

1 mass of the atom
2 atomic number
3 shapes of the atom
4 electronegegativity
AIIMS-1994
Classification of Elements and Periodicity in Properties

89390 The stability of ferric ion is due to :

1 half filled $f$ - orbitals
2 half filled d- orbitals
3 completely filled f-orbitals
4 completely filled d- orbitals
BCECE-2006
Classification of Elements and Periodicity in Properties

89339 Given below are two statements:
One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) Metallic character decreases and non-metallic character increases on moving from left to right in a period.
Reason (R) It is due to increase in ionisation enthalpy and decrease in electron gain enthalpy, when one moves from left to right in a period.
In the light of the above statements, choose the most appropriate answer from the options given below.

1 (A) is false but (R) is true
2 (A) is true but (R) is false
3 Both (A) and (R) are correct and (R) is the correct explanation of (A)
4 Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(JEE Main 2021
For More Updates join with Us
Classification of Elements and Periodicity in Properties

89409 In the periodic table from left to right in a period, the atomic volume
3. Atomic and Ionic Radii

1 decrease
2 increase
3 remains same
4 first decrease then increase
NEET-1993
Classification of Elements and Periodicity in Properties

89408 In the periodic table from left to right in a period, the atomic volume
3. Atomic and Ionic Radii

1 decrease
2 increase
3 remains same
4 first decrease then increase
NEET-1993
Classification of Elements and Periodicity in Properties

89338 The long form of periodic Table is based on

1 mass of the atom
2 atomic number
3 shapes of the atom
4 electronegegativity
AIIMS-1994
Classification of Elements and Periodicity in Properties

89390 The stability of ferric ion is due to :

1 half filled $f$ - orbitals
2 half filled d- orbitals
3 completely filled f-orbitals
4 completely filled d- orbitals
BCECE-2006
Classification of Elements and Periodicity in Properties

89339 Given below are two statements:
One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) Metallic character decreases and non-metallic character increases on moving from left to right in a period.
Reason (R) It is due to increase in ionisation enthalpy and decrease in electron gain enthalpy, when one moves from left to right in a period.
In the light of the above statements, choose the most appropriate answer from the options given below.

1 (A) is false but (R) is true
2 (A) is true but (R) is false
3 Both (A) and (R) are correct and (R) is the correct explanation of (A)
4 Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(JEE Main 2021
NEET DIGITAL LIBRARY
Classification of Elements and Periodicity in Properties

89409 In the periodic table from left to right in a period, the atomic volume
3. Atomic and Ionic Radii

1 decrease
2 increase
3 remains same
4 first decrease then increase
NEET-1993
Classification of Elements and Periodicity in Properties

89408 In the periodic table from left to right in a period, the atomic volume
3. Atomic and Ionic Radii

1 decrease
2 increase
3 remains same
4 first decrease then increase
NEET-1993
Classification of Elements and Periodicity in Properties

89338 The long form of periodic Table is based on

1 mass of the atom
2 atomic number
3 shapes of the atom
4 electronegegativity
AIIMS-1994
Classification of Elements and Periodicity in Properties

89390 The stability of ferric ion is due to :

1 half filled $f$ - orbitals
2 half filled d- orbitals
3 completely filled f-orbitals
4 completely filled d- orbitals
BCECE-2006
Classification of Elements and Periodicity in Properties

89339 Given below are two statements:
One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) Metallic character decreases and non-metallic character increases on moving from left to right in a period.
Reason (R) It is due to increase in ionisation enthalpy and decrease in electron gain enthalpy, when one moves from left to right in a period.
In the light of the above statements, choose the most appropriate answer from the options given below.

1 (A) is false but (R) is true
2 (A) is true but (R) is false
3 Both (A) and (R) are correct and (R) is the correct explanation of (A)
4 Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(JEE Main 2021
Join With Us for More Updates
Classification of Elements and Periodicity in Properties

89409 In the periodic table from left to right in a period, the atomic volume
3. Atomic and Ionic Radii

1 decrease
2 increase
3 remains same
4 first decrease then increase
NEET-1993
Classification of Elements and Periodicity in Properties

89408 In the periodic table from left to right in a period, the atomic volume
3. Atomic and Ionic Radii

1 decrease
2 increase
3 remains same
4 first decrease then increase
NEET-1993
Classification of Elements and Periodicity in Properties

89338 The long form of periodic Table is based on

1 mass of the atom
2 atomic number
3 shapes of the atom
4 electronegegativity
AIIMS-1994
Classification of Elements and Periodicity in Properties

89390 The stability of ferric ion is due to :

1 half filled $f$ - orbitals
2 half filled d- orbitals
3 completely filled f-orbitals
4 completely filled d- orbitals
BCECE-2006
Classification of Elements and Periodicity in Properties

89339 Given below are two statements:
One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) Metallic character decreases and non-metallic character increases on moving from left to right in a period.
Reason (R) It is due to increase in ionisation enthalpy and decrease in electron gain enthalpy, when one moves from left to right in a period.
In the light of the above statements, choose the most appropriate answer from the options given below.

1 (A) is false but (R) is true
2 (A) is true but (R) is false
3 Both (A) and (R) are correct and (R) is the correct explanation of (A)
4 Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(JEE Main 2021