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🛠️ JEE🧪 Chemistry

With respect to the compounds , choose the incorrect statement(s).

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With respect to the compounds , choose the incorrect statement(s).
aThe acidity of compound is due to delocalization in the conjugate base.
bThe conjugate base of compound IV is aromatic.
cCompound II becomes more acidic, when it has a substituent.
dThe acidity of compounds follows the order I
✓ Correct answer: d) The acidity of compounds follows the order I
ExplanationOption D is incorrect because the given order of acidity is not accurate.The acidity of a compound depends on the stability of its conjugate base.In compound I, the conjugate base (carbanion) is highly stabilized by resonance over three benzene rings, making it the most acidic.Compound IV forms a conjugate base that is aromatic and thus gains extra stability, so it is also relatively acidic.Next comes compound V (a terminal alkyne), where the negative charge is stabilized due to the high s-character of the sp-hybridized carbon.Compound II (benzene) is much less acidic, and compound III (an alkane) is the least acidic.Therefore, the exact order given in option D is not correctly justified, making D the incorrect statement.
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