1
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Following tetrapeptide can be represented as

JEE Main 2023 (Online) 29th January Evening Shift Chemistry - Biomolecules Question 27 English

(F, L, D, Y, I, Q, P are one letter codes for amino acids)

A
YQLF
B
FIQY
C
PLDY
D
FLDY
2
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

List I List II
A. van't Hoff factor, i I. Cryoscopic constant
B. $$\mathrm{k_f}$$ II. Isotonic solutions
C. Solutions with same osmotic pressure III. $$\mathrm{\frac{Normal\,molar\,mass}{Abnormal\,molar\,mass}}$$
D. Azeotropes IV. Solutions with same composition of vapour above it

Choose the correct answer from the options given below :

A
A-III, B-I, C-IV, D-II
B
A-III, B-I, C-II, D-IV
C
A-III, B-II, C-I, D-IV
D
A-I, B-III, C-II, D-IV
3
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)

A
2-Bromo-3,3-dimethylpentane
B
2-Bromopropane
C
1-Bromo-2-methylbutane
D
2-Bromopentane
4
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The concentration of dissolved Oxygen in water for growth of fish should be more than $$\mathrm{\underline X }$$ ppm and Biochemical Oxygen Demand in clean water should be less than $$\mathrm{\underline Y }$$ ppm. X and Y in ppm are, respectively.

A
$$\mathrm{X}$$ $$\mathrm{Y}$$
4 15
B
$$\mathrm{X}$$ $$\mathrm{Y}$$
4 8
C
$$\mathrm{X}$$ $$\mathrm{Y}$$
6 12
D
$$\mathrm{X}$$ $$\mathrm{Y}$$
6 5
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