1
JEE Main 2023 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I
Enzymatic reaction
LIST II
Enzyme
A. Sucrose $$\to$$ Glocuse and Fructose I. Zymase
B. Glucose $$\to$$ ethyl alcohol and CO$$_2$$ II. Pepsin
C. Starch $$\to$$ Maltose III. Invertase
D. Proteins $$\to$$ Amino acids IV. Diastase

Choose the correct answer from the options given below:

A
A-III, B-I, C-II, D-IV
B
A-III, B-I, C-IV, D-II
C
A-I, B-IV, C-III, D-II
D
A-I, B-II, C-IV, D-III
2
JEE Main 2023 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

All structures given below are of vitamin C. Most stable of them is :

A
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Biomolecules Question 44 English Option 1
B
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Biomolecules Question 44 English Option 2
C
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Biomolecules Question 44 English Option 3
D
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Biomolecules Question 44 English Option 4
3
JEE Main 2023 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : $$\alpha$$-halocarboxylic acid on reaction with dil. $$\mathrm{NH_3}$$ gives good yield of $$\alpha$$-amino carboxylic acid whereas the yield of amines is very low when prepared from alkyl halides.

Reason (R) : Amino acids exist in zwitter ion form in aqueous medium.

In the light of the above statements, choose the correct answer from the options given below :

A
(A) is not correct but (R) is correct
B
(A) is correct but (R) is not correct
C
Both (A) and (R) are correct but (R) is not the correct explanation of (A)
D
Both (A) and (R) are correct and (R) is the correct explanation of (A)
4
JEE Main 2023 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct representation in six membered pyranose form for the following sugar [X] is

JEE Main 2023 (Online) 1st February Morning Shift Chemistry - Biomolecules Question 42 English

A
JEE Main 2023 (Online) 1st February Morning Shift Chemistry - Biomolecules Question 42 English Option 1
B
JEE Main 2023 (Online) 1st February Morning Shift Chemistry - Biomolecules Question 42 English Option 2
C
JEE Main 2023 (Online) 1st February Morning Shift Chemistry - Biomolecules Question 42 English Option 3
D
JEE Main 2023 (Online) 1st February Morning Shift Chemistry - Biomolecules Question 42 English Option 4
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