amino acids generally exist in the form of zwitter ions

Amino acids generally exist in the form of Zwitter ions. This means they contain

A. basic $$ - N{H_2}$$ group and acidic $$-COOH$$ group

B. the basic $$\mathop { - N{H_3}}\limits^{ + \,} $$ group and acidic $$ - CO{O^ - }$$ group

C. basic $$ - N{H_2}$$ and acidic $$ - {H^ + }$$ group

D. basic $$ - CO{O^ - }$$ group and acidic $$\mathop { - N{H_3}}\limits^{ + \,} $$ group

Answer : basic $$ - CO{O^ - }$$ group and acidic $$\mathop { - N{H_3}}\limits^{ + \,} $$ group

Solution :
Zwitter ion contains both $$+ve$$ and $$-ve$$ charge. Proton of $$-COOH$$ group is transferred to the $$ - N{H_2}$$ group. $$ - NH_3^ + $$ group is acidic since it can donate a proton and $$ - CO{O^ - }$$ group is basic since it can accept a proton.

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Organic Chemistry >> Biomolecules

Releted Question 1

The pair of compounds in which both the compounds give positive test with Tollen’s reagent is

A. Glucose and Sucrose

B. Fructose and Sucrose

C. Acetophenone and Hexanal

D. Glucose and Fructose

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Releted Question 2

The two forms of $$D - $$ glucopyranose obtained from the solution of $$D - $$ glucose are called

A. Isomers

B. Anomers

C. Epimers

D. Enantiomers

View Answer

Releted Question 3

Cellulose upon acetylation with excess acetic anhydride/ $${H_2}S{O_4}$$ (catalytic) gives cellulose triacetate whose structure is

View Answer

Releted Question 4

The following carbohydrate is

A. a ketohexose

B. an aldohexose

C. an $$\alpha $$ - furanose

D. an $$\alpha $$ - pyranose

View Answer

Amino acids generally exist in the form of Zwitter ions. This means they contain

Releted MCQ Question on
Organic Chemistry >> Biomolecules

The pair of compounds in which both the compounds give positive test with Tollen’s reagent is

The two forms of $$D - $$ glucopyranose obtained from the solution of $$D - $$ glucose are called

Cellulose upon acetylation with excess acetic anhydride/ $${H_2}S{O_4}$$ (catalytic) gives cellulose triacetate whose structure is

The following carbohydrate is

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Biomolecules

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Amino acids generally exist in the form of Zwitter ions. This means they contain

Releted MCQ Question on Organic Chemistry >> Biomolecules

The pair of compounds in which both the compounds give positive test with Tollen’s reagent is

The two forms of $$D - $$ glucopyranose obtained from the solution of $$D - $$ glucose are called

Cellulose upon acetylation with excess acetic anhydride/ $${H_2}S{O_4}$$ (catalytic) gives cellulose triacetate whose structure is

The following carbohydrate is

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Releted MCQ Question on
Organic Chemistry >> Biomolecules

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Biomolecules