Periodic Trends in Chemical Properties of Elements
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313379 Read Assertion and Reason carefully and mark correct option.
Assertion :
The energy required to form \({\text{M}}{{\text{g}}^{2 + }}\) from Mg is much higher than that required to produce \({\text{M}}{{\text{g}}^ + }\).
Reason :
\({\text{M}}{{\text{g}}^{2 + }}\) is small ion and carry more charge than \({\text{M}}{{\text{g}}^ + }\).

1 Assertion is true but Reason is false.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
4 Assertion is false but Reason is true.
JEE - 2023
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313380 Among the following statements one that is not correct for the periodic classification of element is

1 The properties of elements are the periodic functions of their atomic numbers.
2 Non-metallic elements are lesser in number than metallic elements.
3 The first ionisation energies of elements along a period do not vary in a regular manner with increase in atomic number.
4 For transition elements the d-subshells are filled with electrons irregularly with increase in atomic number.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313381 Assertion :
Alkali metals have least value of ionization energy within a period.
Reason :
They precede alkaline earth metals in periodic table.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313382 Which one of the following is an incorrect statement?

1 The first ionisation potential of nitrogen is greater than that of oxygen
2 The electron affinity of fluorine is greater than that of chlorine.
3 The ionization potential of beryllium is greater than that of boron
4 The electronegativity of fluorine is greater than that of chlorine
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313379 Read Assertion and Reason carefully and mark correct option.
Assertion :
The energy required to form \({\text{M}}{{\text{g}}^{2 + }}\) from Mg is much higher than that required to produce \({\text{M}}{{\text{g}}^ + }\).
Reason :
\({\text{M}}{{\text{g}}^{2 + }}\) is small ion and carry more charge than \({\text{M}}{{\text{g}}^ + }\).

1 Assertion is true but Reason is false.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
4 Assertion is false but Reason is true.
JEE - 2023
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313380 Among the following statements one that is not correct for the periodic classification of element is

1 The properties of elements are the periodic functions of their atomic numbers.
2 Non-metallic elements are lesser in number than metallic elements.
3 The first ionisation energies of elements along a period do not vary in a regular manner with increase in atomic number.
4 For transition elements the d-subshells are filled with electrons irregularly with increase in atomic number.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313381 Assertion :
Alkali metals have least value of ionization energy within a period.
Reason :
They precede alkaline earth metals in periodic table.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313382 Which one of the following is an incorrect statement?

1 The first ionisation potential of nitrogen is greater than that of oxygen
2 The electron affinity of fluorine is greater than that of chlorine.
3 The ionization potential of beryllium is greater than that of boron
4 The electronegativity of fluorine is greater than that of chlorine
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313379 Read Assertion and Reason carefully and mark correct option.
Assertion :
The energy required to form \({\text{M}}{{\text{g}}^{2 + }}\) from Mg is much higher than that required to produce \({\text{M}}{{\text{g}}^ + }\).
Reason :
\({\text{M}}{{\text{g}}^{2 + }}\) is small ion and carry more charge than \({\text{M}}{{\text{g}}^ + }\).

1 Assertion is true but Reason is false.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
4 Assertion is false but Reason is true.
JEE - 2023
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313380 Among the following statements one that is not correct for the periodic classification of element is

1 The properties of elements are the periodic functions of their atomic numbers.
2 Non-metallic elements are lesser in number than metallic elements.
3 The first ionisation energies of elements along a period do not vary in a regular manner with increase in atomic number.
4 For transition elements the d-subshells are filled with electrons irregularly with increase in atomic number.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313381 Assertion :
Alkali metals have least value of ionization energy within a period.
Reason :
They precede alkaline earth metals in periodic table.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313382 Which one of the following is an incorrect statement?

1 The first ionisation potential of nitrogen is greater than that of oxygen
2 The electron affinity of fluorine is greater than that of chlorine.
3 The ionization potential of beryllium is greater than that of boron
4 The electronegativity of fluorine is greater than that of chlorine
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313379 Read Assertion and Reason carefully and mark correct option.
Assertion :
The energy required to form \({\text{M}}{{\text{g}}^{2 + }}\) from Mg is much higher than that required to produce \({\text{M}}{{\text{g}}^ + }\).
Reason :
\({\text{M}}{{\text{g}}^{2 + }}\) is small ion and carry more charge than \({\text{M}}{{\text{g}}^ + }\).

1 Assertion is true but Reason is false.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
4 Assertion is false but Reason is true.
JEE - 2023
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313380 Among the following statements one that is not correct for the periodic classification of element is

1 The properties of elements are the periodic functions of their atomic numbers.
2 Non-metallic elements are lesser in number than metallic elements.
3 The first ionisation energies of elements along a period do not vary in a regular manner with increase in atomic number.
4 For transition elements the d-subshells are filled with electrons irregularly with increase in atomic number.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313381 Assertion :
Alkali metals have least value of ionization energy within a period.
Reason :
They precede alkaline earth metals in periodic table.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313382 Which one of the following is an incorrect statement?

1 The first ionisation potential of nitrogen is greater than that of oxygen
2 The electron affinity of fluorine is greater than that of chlorine.
3 The ionization potential of beryllium is greater than that of boron
4 The electronegativity of fluorine is greater than that of chlorine
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