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NEET ChemistryGeneralEasy

Question

Identify a molecule which does not exist.

1

He2He_2

2

Li2Li_2

3

C2C_2

4

O2O_2

Step-by-Step Solution

For He2He_2 molecule, electronic configuration is σ1s2,σ∗1s2\sigma 1s^2, \sigma^* 1s^2. Bond order = 12[Nb−Na]=12[2−2]=0\frac{1}{2}[N_b - N_a] = \frac{1}{2}[2 - 2] = 0. Since, bond order is zero, so He2He_2 molecule does not exist.

Exam Context & Concepts Covered

This question aligns with the NEET Chemistry syllabus, specifically targeting concepts from General. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

Chemistryidentifymolecule

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