Statement (I) : p-nitrophenol is more acidic than mm-nitrophenol and o-nitrophenol.Statement (II) : Ethanol will give immediate turbidity with Lucas reagent.In the light of the above statements, choose the correct answer from the options given below :JEE Main 2024 (27 Jan Shift 1)AStatement I is true but Statement II is falseBBoth Statement I and Statement II are trueCBoth Statement I and Statement II are falseDStatement I is false but Statement II is true
Question
Statement (I) : p-nitrophenol is more acidic than mm-nitrophenol and o-nitrophenol.Statement (II) : Ethanol will give immediate turbidity with Lucas reagent.In the light of the above statements, choose the correct answer from the options given below :JEE Main 2024 (27 Jan Shift 1)AStatement I is true but Statement II is falseBBoth Statement I and Statement II are trueCBoth Statement I and Statement II are falseDStatement I is false but Statement II is true
Solution
Statement I is true. p-nitrophenol is indeed more acidic than m-nitrophenol and o-nitrophenol. This is because the nitro group in p-nitrophenol is able to stabilize the negative charge on the oxygen atom after it loses a proton (H+), making it more acidic.
Statement II is also true. Ethanol does give immediate turbidity with Lucas reagent. Lucas reagent is a solution of zinc chloride in concentrated hydrochloric acid, used to classify alcohols of low molecular weight. The reaction is a substitution in which the alcohol is protonated and leaves as a leaving group, then it is replaced by a nucleophile.
So, the correct answer is B: Both Statement I and Statement II are true.
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