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Which compound can exist in a dipolar (z...

Which compound can exist in a dipolar (zwitter ion) state

A

`C_(6)H_(5)CH_(2)CH(N=CH_(2))COOH`

B

`(CH_(3))_(2)CHCH(NH_(2))COOH`

C

`C_(6)H_(5)CONHCH_(2)COOH`

D

`HOO"CC"H_(2)CH_(2)COCOOH`

Text Solution

Verified by Experts

The correct Answer is:
B
`alpha`-Amino acids exists as zwitter ion.
`(CH_(3))_(2)CH-underset(NH_(2))underset(|)CH-COOH to (CH_(3))_(2)CH-underset("Zwitter ion")underset(""^(+)NH_(3))underset(|)CH-COO^(-)`
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NCERT FINGERTIPS-BIOMOLECULES-Proteins
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  2. Amino acids usually exist in the form of Zwitter ions. This mean that ...

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  8. Which of the following represents a peptide chain ?

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  9. Which of the following is the correct statement ?

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  10. The peptide linkage formed between glycine (NH(2)CH(2)COOH) and alanin...

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  11. In fibrous proteins, polypeptide chains are held together by........ .

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  12. Keratin is a protein having larger amount of

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  13. Globular proteins are present in:

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  14. Mark the incorrect example.

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  15. Primary structure of protein is due to

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  16. Secondary structure of proteins refers to

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  18. alpha-helix is a secondary structure of proteins formed by twisting of...

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  20. Denaturation of proteins leads to loss of its biological activity by

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