For alpha-amino acids having the structure R- | vedclass

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

Question

(B) The $pH$ at which the concentration of anions and cations is equal is the isoelectric point $(pI)$. At this $pH$,the amino acid exists as a zwitte

Vedclass · Accepted Answer

$B$ and $C$

Vedclass · Answer

(B) The $pH$ at which the concentration of anions and cations is equal is the isoelectric point $(pI)$. At this $pH$,the amino acid exists as a zwitterion,which has the minimum solubility in water,not maximum.$(b)$ All $\alpha$-amino acids react with ninhydrin to produce a characteristic purple-blue colored complex.$(c)$ $\alpha$-amino acids react with nitrous acid $(HNO_2)$ to form a diazonium salt,which is unstable and decomposes to release $N_2$ gas.Therefore,statements $(b)$ and $(c)$ are true.

For $\alpha$-amino acids having the structure $R-CH(NH_2)-CO_2H$,which of the following statements are true?
$(a)$ Water solubility is maximum at a $pH$ when concentrations of anions and cations are equal.
$(b)$ They give ninhydrin test.
$(c)$ On reacting with nitrous acid,they give off $N_2$.

Similar Questions

The $\alpha$-helix structure is found in which of the following?

Which statement correctly completes the statement?
Except for glycine,which is achiral,all the amino acids present in proteins ......

Antibodies are

Proteins are $.......$.

Which amino acid is present as a monomer in the polymer $Nylon-2-nylon-6$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

For $\alpha$-amino acids having the structure $R-CH(NH_2)-CO_2H$,which of the following statements are true?$(a)$ Water solubility is maximum at a $pH$ when concentrations of anions and cations are equal.$(b)$ They give ninhydrin test.$(c)$ On reacting with nitrous acid,they give off $N_2$.