Which of the following series correctly represents relations between the elements from X to Y?
$X\to Y$

Question

When the first electron gain enthalpy $( \Delta_{eg}H) $ of oxygen is $-141\, kJ/mol$, its second electron gain enthalpy is :

Answer 1

To determine which series correctly represents the relation between the elements from X to Y, we need to evaluate each given option based on the periodic trends in the periodic table. Let's analyze each option step-by-step:

$_{3}Li \to_{19}K$ - Ionization enthalpy increases.
- Explanation: As we move down the group in the periodic table, ionization enthalpy generally decreases. Lithium ($Li$) and Potassium ($K$) belong to Group 1 (alkali metals). Therefore, the ionization enthalpy should decrease from $Li$ to $K$ instead of increasing. Hence, this option is incorrect.
$_{9}F\to_{35}Br$ - Electron gain enthalpy with negative sign increases.
- Explanation: Electron gain enthalpy refers to the energy change when an electron is added to a neutral atom. Typically, for halogens like Fluorine ($F$) and Bromine ($Br$), the electron gain enthalpy decreases down the group due to increasing atomic size and greater electron shielding. Thus, this statement is incorrect.
$_{6}C \to_{32}Ge$ - Atomic radii increases.
- Explanation: Carbon ($C$) and Germanium ($Ge$) belong to Group 14 of the periodic table. As we move down the group, the atomic radius increases because each subsequent element has an additional electron shell. Therefore, this option is correct.
$_{18}Ar\to_{54}Xe$ - Noble character increases.
- Explanation: Argon ($Ar$) and Xenon ($Xe$) are noble gases. The noble character or inertness does not necessarily increase with heavier noble gases. Xenon is known to form compounds, whereas argon is more inert. Thus, this statement is not accurate.

In conclusion, the correct series representing the relations between the elements from X to Y is $_{6}C \to_{32}Ge$ - Atomic radii increases. This aligns with the periodic trend of increasing atomic radii down a group.

Answer 2

To determine which series correctly represents the relation between the elements from X to Y, we need to evaluate each given option based on the periodic trends in the periodic table. Let's analyze each option step-by-step:

$_{3}Li \to_{19}K$ - Ionization enthalpy increases.
- Explanation: As we move down the group in the periodic table, ionization enthalpy generally decreases. Lithium ($Li$) and Potassium ($K$) belong to Group 1 (alkali metals). Therefore, the ionization enthalpy should decrease from $Li$ to $K$ instead of increasing. Hence, this option is incorrect.
$_{9}F\to_{35}Br$ - Electron gain enthalpy with negative sign increases.
- Explanation: Electron gain enthalpy refers to the energy change when an electron is added to a neutral atom. Typically, for halogens like Fluorine ($F$) and Bromine ($Br$), the electron gain enthalpy decreases down the group due to increasing atomic size and greater electron shielding. Thus, this statement is incorrect.
$_{6}C \to_{32}Ge$ - Atomic radii increases.
- Explanation: Carbon ($C$) and Germanium ($Ge$) belong to Group 14 of the periodic table. As we move down the group, the atomic radius increases because each subsequent element has an additional electron shell. Therefore, this option is correct.
$_{18}Ar\to_{54}Xe$ - Noble character increases.
- Explanation: Argon ($Ar$) and Xenon ($Xe$) are noble gases. The noble character or inertness does not necessarily increase with heavier noble gases. Xenon is known to form compounds, whereas argon is more inert. Thus, this statement is not accurate.

In conclusion, the correct series representing the relations between the elements from X to Y is $_{6}C \to_{32}Ge$ - Atomic radii increases. This aligns with the periodic trend of increasing atomic radii down a group.

Which of the following series correctly represents relations between the elements from X to Y?
\(X\to Y\)

The Correct Option is C

Solution and Explanation

Top Questions on Classification

Questions Asked in JEE Main exam

Which of the following series correctly represents relations between the elements from X to Y?\(X\to Y\)

The Correct Option is C

Solution and Explanation

Top Questions on Classification

Questions Asked in JEE Main exam

Which of the following series correctly represents relations between the elements from X to Y?
\(X\to Y\)