Q42 · CSIR-NET Chemistry, December 2012

Paper: CSIR-NET December 2012 · Subject: Inorganic Chemistry · Chapter: Chemical Bonding · Topic: Hydrogen Bonding Weak Interactions · Marks: 2 · Difficulty: Medium

When a hydrogen atom is placed in an electric field along the y-axis, the orbital that mixes most with the ground state 1s orbital is
(a)2s
(b)$2 \mathrm{p}_{\mathrm{x}}$
(c)$2\mathrm{p}_{\mathrm{y}}$
(d)$2 \mathrm{p}_{\mathrm{z}}$
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
A field along y couples 1s to orbitals with Δl = 1 and the same orientation: 2p_y.

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