1
JEE Main 2022 (Online) 27th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
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
B
C
D
2
JEE Main 2022 (Online) 26th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
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 :
3
JEE Main 2022 (Online) 26th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Which one of the following is a water soluble vitamin, that is not excreted easily?
4
JEE Main 2022 (Online) 24th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
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 :
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