Which of the following has the lowest pK_a va | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The $pK_a$ value of a compound is inversely related to the stability of its conjugate base. $A$ more stable conjugate base corresponds to a strong

Vedclass · Accepted Answer

Vedclass · Answer

(D) The $pK_a$ value of a compound is inversely related to the stability of its conjugate base. $A$ more stable conjugate base corresponds to a stronger acid and thus a lower $pK_a$ value. $1$. $pK_a$ of diphenylmethane is $\approx 32$. $2$. $pK_a$ of triphenylmethane is $\approx 31$. $3$. $pK_a$ of $9-$phenylfluorene is $18.5$. $4$. $pK_a$ of fluoradene is $11$. In fluoradene,the structure is rigid and planar,which allows for highly effective delocalization of the negative charge in the conjugate base across the entire aromatic system. This results in the highest stability of the conjugate base among the given options,making fluoradene the strongest acid with the lowest $pK_a$ value.

Which of the following has the lowest $pK_a$ value?

Similar Questions

The following molecule is fluorometholone,a steroidal anti-inflammatory agent. How many stereogenic centers does it contain?

Which carbocation is the most stabilized?

Which of the following molecules has a plane of symmetry?

Which type of isomerism is exhibited by the following compounds $I$ and $II$?
$(i)$ $CH_3CH=CHCH_3$
$(ii)$ $CH_3-CH(OH)-CH_2CH_3$

Total number of stereoisomers possible for the given structure:

Vedclass Test Series

Exam Paper Generator

Online Exam Module