amino acid (1mole)\xrightarrow[△]{NaOH+CaO}gas evolved\xrightarrow[{}]{pass through lime water}salt(0.1999 kg) amino acid having i.2 -NH2 gr. ii.1 -COOH gr iii.2 -COOH gr how to deal with such problem? iv.3 -COOH gr

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Q. Assertion
All Amino acids exist as Zwitter ions.

Reason
Amino acids have both-

N H_{2}

and - COOH group.

Q. Select the correct option:

Acidic amino acids have two

- C O O H

groups and one

- N H_{2}

group per molecule. Select the pair that consists of acidic amino acids.

Q. Order of decreasing acidity of (I)

H C O O H,

(II)

C H_{3} C O O H,

(III)

C l_{2} C H C O O H,

and (IV)

C F_{3} C O O H

is _________.

Consider the acidity of carboxylic acids i.Ph - COOH ii. o - NO₂ C₆H₄COOH iii. p - NO₂ C₆H₄COOHiv. m - NO₂ C₆H₄COOH which of the following order is correct

Q. Consider the acidity of the carboxylic acids:
(i)

C_{6} H_{5} C O O H

(ii)

O - N O_{2} C_{6} H_{4} C O O H

(iii)

p - N O_{2} C_{6} H_{4} C O O H

(iv)

m - N O_{2} C_{6} H_{4} C O O H

Which of the following order is correct?

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