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Which of the following incorrectly represent the acidic strength of given acids? (a)clych> fch (b) ch,cooh> ch,ch,oh oh oh c) h,o>ch,oh (d) no which ofthe flmin
Which of the following incorrectly represent the acidic strength of given acids? (a)ClyCH> FCH (b) CH,COOH> CH,CH,OH OH OH c) H,O>CH,OH (d) NO Which ofthe flmine
2 Answer(s)
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Dinesh khalmaniya 1
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option C
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Methanol is more acidic than water because its conjugate base(methoxide) is weaker than water's conjugate base (hydroxide). ... therefore the other OH bond in CH3OH is more polar than the one in H2O as the oxygen atom in CH3OH needs more stabilisation than that in HOH . It can also be understood simply by comparing bond dissociation energy ,due to presence of methyl group in CH3OH the bond between the oxygen and hydrogen become weak and they easily released hydrogen whereas the O-H bond in water is so strong it can't cleaved easily and released hydrogen with great efforts.. therefore H2O is less acidic as compared to CH3OH
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Nivedha
I felt that option c is wrongly represented. but the answer given was B. hence i wanted to know the proper explanation. kindly provide me an explanation
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Nivedha B is correctly represented
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Acetic acid is more acidic than ethanol, because the anion of acetic acid, i.e. the acetate anion, is resonance stabilized , but the anion of ethanol is not.
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Option C is incorrectly represented
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methanol has slightly more acidity than water
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Dinesh khalmaniya 1
no, option B is absolutely wrong because acetate ion is stabilized by equivalent resonance which is not present in methanol