Knockout JEE Main April 2021 (One Month)
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The correct match between Item I and Item II is :
Item I Item II
(A) Ester test (P) Tyr
(B) Carbylamine test (Q) Asp
(C) Phthalein dye test (R) Ser
(S) Lys
(A) (R); (B)
(S); (C)
(Q)
(A) (Q); (B)
(S); (C)
(R)
(A) (Q); (B)
(S); (C)
(P)
(A) (R); (B)
(Q); (C)
(P)
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Acidic and basic hydrolysis of Esters -
Acidic hydrolysis gives carboxylic acid directly. Basic hydrolysis gives carboxylates which acidify to give the carboxylic acid.
- wherein
Phthalein Reaction -
Product form is phenolphthalein.
- wherein
Carboxylic acids -
Organic acid containing one or more carboxyl (-COOH) groups as a functional group.
- wherein
Phthalein test is given by phenolic ring that is present in tyrosine.
Option 1)
(A)
(R); (B)
(S); (C)
(Q)
Option 2)(A)
(Q); (B)
(S); (C)
(R)
Option 3)(A)
(Q); (B)
(S); (C)
(P)
Option 4)(A)
(R); (B)
(Q); (C)
(P)