Chemistry · Periodicity of Elements and Periodic Properties
JEE Main 2024 — 9 April, Shift 1 — Question 66
Given below are two statements, one is labelled as Statement I and the other is labelled as Statement II.
Statement (I) : The oxidation state of an element in a particular compound is the charge acquired by its atom on the basis of electron gain enthalpy consideration from other atoms in the molecule.
Statement (II) : - bond formation is more prevalent in second period elements over other periods.
In the light of the above statements, choose the most appropriate answer from the options given below :
- Option A:
Both Statement I and Statement II are incorrect
- Option B:
Statement I is correct but Statement II is incorrect
- Option C:
Both Statement I and Statement II are correct
- Option D:Correct
Statement I is incorrect but Statement II is correct
Answer: D
Step-by-step solution
Statement I is incorrect: The oxidation state of an element in a compound is defined as the hypothetical charge assigned to its atom assuming complete transfer of electrons between the bonded atoms. It is not based on electron gain enthalpy considerations.
Statement II is correct: multiple bond formation is more prevalent in second-period elements due to their small atomic size and effective overlap of orbitals. In higher periods, the larger and more diffuse orbitals result in poorer overlap.
Thus, statement I is incorrect but statement II is correct.
Answer key and solution verified before publishing.
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- Exam
- JEE Main 2024
- Paper
- 9 April, Shift 1
- Subject
- Chemistry
- Chapter
- Periodicity of Elements and Periodic Properties
- Topic
- Periodicity in Chemical Properties (Ionization Energy, Electron Affinity, Electronegativity)