In aqueous solutions, amino acids mostly exist as :

N H_{2} - C H (R) - C O O H

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N H_{2} - C H (R) - C O O^{-}

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N H_{3}^{+} - C H (R) - C O O H

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H_{3} N^{+} - C H (R) - C O O^{-}

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Solution

The correct option is C $H_{3} N^{+} - C H (R) - C O O^{-}$
In aqueous solutions, amino acids mostly exist as $H_{3} N^{+} - C H R - C O O^{-}$ (zwitter ion).

Option D is correct.

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Similar questions

R_{2} C = C R_{2} < R_{2} C = C H R < R C H = C H R < C H_{2} = C H_{2}

R C H = C H R, R_{2} C = C H R

R_{2} C = {C R}_{2}

R_{2} C = C R_{2} I, R_{2} C = C H R I I, R_{2} C = C H_{2} I I I, R C H = C H R I V

R C H = C H_{2} V

^{+} N H_{3} - C H (R) - C O_{2} H

K a_{1} = 10^{- 7}

α

p K a_{2}

α

Is $(- N H - C H R - C O)_{n}$ , a homopolymer or copolymer ?

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