Q. The strongest hydrogen bond is formed between:

सबसे मजबूत हाइड्रोजन बंधन किसके बीच बनता है:

A
H₂O...H₂O
B
HF...HF
एचएफ...एचएफ
C
NH₃...NH₃
D
CH₃OH...CH₃OH

Explanation

Hydrogen fluoride (HF) forms very strong hydrogen bonds because:

  • Fluorine is the most electronegative element.

  • The H–F bond is highly polar.
    Thus, HF...HF hydrogen bonding is stronger than in water or ammonia.

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