1
JEE Main 2022 (Online) 27th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

L-isomer of a compound 'A' (C4H8O4) gives a positive test with [Ag(NH3)2]+. Treatment of 'A' with acetic anhydride yields triacetate derivative. Compound 'A' produces an optically active compound (B) and an optically inactive compound (C) on treatment with bromine water and HNO3 respectively. Compound (A) is :

A
JEE Main 2022 (Online) 27th June Morning Shift Chemistry - Biomolecules Question 53 English Option 1
B
JEE Main 2022 (Online) 27th June Morning Shift Chemistry - Biomolecules Question 53 English Option 2
C
JEE Main 2022 (Online) 27th June Morning Shift Chemistry - Biomolecules Question 53 English Option 3
D
JEE Main 2022 (Online) 27th June Morning Shift Chemistry - Biomolecules Question 53 English Option 4
2
JEE Main 2022 (Online) 26th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List-I with List-II

List - I
Enzyne
List - II
Conversion of
A. Invertase I. Starch into maltose
B. Zymase II. Maltose into glucose
C. Diastase III. Glucose into ethanol
D. Maltase IV. Cane sugar into glucose

Choose the most appropriate answer from the options given below :

A
A-III, B-IV, C-II, D-I
B
A-III, B-II, C-I, D-IV
C
A-IV, B-III, C-I, D-II
D
A-IV, B-II, C-III, D-I
3
JEE Main 2022 (Online) 26th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which one of the following is a water soluble vitamin, that is not excreted easily?

A
Vitamin B2
B
Vitamin B1
C
Vitamin B6
D
Vitamin B12
4
JEE Main 2022 (Online) 24th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A polysaccharide 'X' on boiling with dil H2SO4 at 393 K under 2-3 atm pressure yields 'Y'. 'Y' on treatment with bromine water gives gluconic acid. 'X' contains $$\beta$$-glycosidic linkages only. Compound 'X' is :

A
starch
B
cellulose
C
amylose
D
amylopectin
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