Question: Which Out Of Ethane Or Ethyne Is More Acidic And Why?

Which is more acidic acetylene or ethane?

Greater the percent of ‘s’orbital in hybridisation,greater is the electronegativity of the atom.

Thus in acetylene difference in electronegativity of hydrogen and carbon is more,hence more acidic.

Hence ethyne is more acidic than ethane..

Why is Ethyne a strong acid?

Terminal alkynes (R-C≡C-H) are weakly acidic in nature because of sp-hybridised state of the triple bonded carbon atom. Due to substantial s-character (50%), the triple bonded carbon is electronegative in nature and this enables the release of H+ ion form ≡C-H bond. However, ethyne is a stronger acid than propyne.

Why is c2h2 more acidic than c2h4?

C2H2 has sp hybridisation which means it has maximum bond polarity as maximum s character is there so obviously it becomes most acidic. C2H4 ethelene has sp2 hybrudisation and hence comparatively less s character in the C-H bond thus less acidic than C2H2.

Which is more acidic Ethyne or Propyne?

Ethyne has two terminal acidic hydrogen atoms whereas propyne has one terminal acidic hydrogen atom. … Moreover, the electron donating methyl group attached to carbon atom on the other side of the triple bond decreases the acidity of alkynyl hydrogen atom.

Which is more acidic water or alcohol?

Since -OH – > -OR – , hence water is more acidic than alcohols. Water is a better acid than alcohol because of the electron donating nature of the alkyl group attached to the oxygen which destabilizes the hydroxide(in the case of alcohol,Alkoxide) ion and makes it tougher for the oxygen to donate the proton.

Is Butyne or 2 Butyne more acidic?

1-Butyne is more acidic than 2-Butyne. Note that more is the s-character of the bond more is the acidity.. … Whereas, in case of 2-butyne, the sp hybridised carbon atom has methyl group attached to it, so there is almost no chance of lossing hydronium ion.

Which is more acidic water or Ethyne?

The negative charge on the oxygen is much more stable in comparison to the negative charge on carbon. So, the first reaction is less disfavoured (more favoured) than the second. So, water is more acidic than ethyne. … Water has 2 lone pairs of electrons on the oxygen, one of which can be donated to a suitable acceptor.

Which alkyne is most acidic?

ethyneThus, ethyne is most acidic of all four compounds.

Which of the following is most acidic?

The structure given in Option C is most acidic. Due to the presence of Chlorine atom in a compound such as m-chlorophenol, it is considered as most acidic than phenol, benzyl alcohol, and cyclohexanol.

Which is a stronger acid ch3cooh or Hcooh?

Answer: Both HCOOH and CH3COOH are weak acids. CH3COOH is a slightly weaker acid than HCOOH. The strengths of carboxylic acids vary with the total electron-withdrawing power of the atoms bonded to the carboxyl group. The more electron-withdrawing the substituent group, the stronger the acid.