1
JEE Main 2019 (Online) 10th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following tests cannot be used for identifying amino acids?
A
Ninhydrin test
B
Barfoed test
C
Xanthoproteic test
D
Biuret test
2
JEE Main 2019 (Online) 10th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct structure of product 'P' in the following reactions is :

JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Biomolecules Question 128 English
A
JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Biomolecules Question 128 English Option 1
B
JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Biomolecules Question 128 English Option 2
C
JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Biomolecules Question 128 English Option 3
D
JEE Main 2019 (Online) 10th January Morning Slot Chemistry - Biomolecules Question 128 English Option 4
3
JEE Main 2019 (Online) 9th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct sequence of amino acids present in the tripeptide given below is :

JEE Main 2019 (Online) 9th January Evening Slot Chemistry - Biomolecules Question 129 English
A
Val - Ser - Thr
B
Thr - Ser - Val
C
Leu - Ser - Thr
D
Thr - Ser - Leu
4
JEE Main 2019 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The increasing order of pka of the following amino acids in aqueous solution is :

Gly, Asp, Lys, Arg
A
Asp < Gly < Arg < Lys
B
Gly < Asp < Arg < Lys
C
Asp < Gly < Lys < Arg
D
Arg < Lys < Gly < Asp
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