Which of the following statements are not correct?
A. The electron gain enthalpy of F is more negative than that of Cl.
B. Ionization enthalpy decreases in a group of periodic table.
C. The electronegativity of an atom depends upon the atoms bonded to it.
D. Al2O3 and NO are examples of amphoteric oxides.
Choose the most appropriate answer from the options given below:
A. The electron gain enthalpy of F is more negative than that of Cl.
B. Ionization enthalpy decreases in a group of periodic table.
C. The electronegativity of an atom depends upon the atoms bonded to it.
D. Al2O3 and NO are examples of amphoteric oxides.
Choose the most appropriate answer from the options given below:
- Α, B and D Only
- A, B, C and D
- B and D Only
- A, C and D Only
The Correct Option is D
Solution and Explanation
- The electron gain enthalpy of fluorine (\( \text{F} \)) is more negative than that of chlorine (\( \text{Cl} \)), so statement A is correct.
- Ionization enthalpy does decrease as we move down a group in the periodic table, so statement B is correct.
- Electronegativity of an atom is a property of the atom itself and does not depend on the atoms bonded to it, so statement C is incorrect.
- Al$_2$O$_3$ is amphoteric, but NO is a neutral oxide, not amphoteric, so statement D is also incorrect.
Thus, the incorrect statements are C and D.
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