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Types of Amino Acids

Identity corr...

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Identity correct statement (a)degree of hydrolysis decrease on doubling the concentration of aqueous solution of CH3COONH4 (b)for 1M CH3COOH pH=pKa/2 (c)salt hydrolysis depends on size of atom (d)all

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Q. Statement-1: When the aqueous solution of

C H_{3} C O O N H_{4}

is diluted, then its degree of hydrolysis does not change.
Statement-2: It is the salt of a weak acid and a weak base hence its degree of hydrolysis does not depend on the concentration.

p K_{a}

C H 3 C O O H

p K_{b}

N H_{4} O H

is 4.76 and 4.75. respectively. Calculate the hydrolysis constant of ammonium acetate

(C H_{3} C O O N H_{4})

at 298 K and also the degree of hydrolysis and pH of its (a) 0.01 M and (ii) 0.04 M solutions.

Q. The degree of hydrolysis of

{C H}_{3} C O O {N H}_{4}

is independent of its concentration in solution.

If true write 1, else write 0.

Q. Assertion :Aqueous solution of

C H_{3} C O O N H_{4}

is found to be neutral. Reason: This salt does not undergo hydrolysis.

Q. Assertion :Degree of hydrolysis and

p H

{N H}_{4} C N

is independent of concentration of

{N H}_{4} C N

Reason: The solution of

{N H}_{4} C N

p H

slightly greater than

7

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