1
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Correct order of spin only magnetic moment of the following complex ions is :

(Given At.no. Fe : 26, Co : 27)

A
$$\mathrm{[CoF_6]^{3-} > [FeF_6]^{3-} > [Co(C_2O_4)_3]^{3-}}$$
B
$$\mathrm{[FeF_6]^{3-} > [Co(C_2O_4)_3]^{3-} > [CoF_6]^{3-}}$$
C
$$\mathrm{[FeF_6]^{3-} > [CoF_6]^{3-} > [Co(C_2O_4)_3]^{3-}}$$
D
$$\mathrm{[Co(C_2O_4)_3]^{3-} > [CoF_6]^{3-} > [FeF_6]^{3-}}$$
2
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Reaction of propanamide with $$\mathrm{Br_2/KOH(aq)}$$ produces :

A
Propanenitrile
B
Propylamine
C
Ethylnitrile
D
Ethylamine
3
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 58 English

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

A
YQLF
B
FIQY
C
PLDY
D
FLDY
4
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
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