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

Match List I with List II

LIST I
Natural Amino Acid
LIST II
One Letter Code
A. Arginine I. D
B. Aspartic acid II. N
C. Asparagine III. A
D. Alanine IV. R

Choose the correct answer from the options given below:

A
(A) - IV, (B) - I, (C) - III, (D) - II
B
(A) - III, (B) - I, (C) - II, (D) - IV
C
(A) - IV, (B) - I, (C) - II, (D) - III
D
(A) - I, (B) - III, (C) - IV, (D) - II
2
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
3
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 40 English Option 1
B
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Biomolecules Question 40 English Option 2
C
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Biomolecules Question 40 English Option 3
D
JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Biomolecules Question 40 English Option 4
4
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)
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