1
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
2
JEE Main 2018 (Online) 16th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Among the following, the incorrect statement is :
A
Maltose and lactose has 1, 4 - glycosidic linkage.
B
Sucrose and amylose has 1, 2 - glycosidic linkage
C
Cellulose and amylose has 1, 4 - glycosidic linkage.
D
Lactose contains $$\beta $$-D-galactose and $$\beta $$-D-glucose.
3
JEE Main 2018 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Glucose on prolonged heating with HI gives
A
6-iodohexanal
B
n-Hexane
C
1-Hexene
D
Hexanoic acid
4
JEE Main 2018 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
The predominant form of histamine present in human blood is (pKa, Histidine = 6.0)
A
JEE Main 2018 (Offline) Chemistry - Biomolecules Question 136 English Option 1
B
JEE Main 2018 (Offline) Chemistry - Biomolecules Question 136 English Option 2
C
JEE Main 2018 (Offline) Chemistry - Biomolecules Question 136 English Option 3
D
JEE Main 2018 (Offline) Chemistry - Biomolecules Question 136 English Option 4
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