1
JEE Main 2022 (Online) 28th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A primary aliphatic amine on reaction with nitrous acid in cold (273 K) and there after raising temperature of reaction mixture to room temperature (298 K), gives a/an

A
nitrile
B
alcohol
C
diazonium salt
D
secondary amine
2
JEE Main 2022 (Online) 28th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Which one of the following is NOT a copolymer?

A
Buna-S
B
Neoprene
C
PHBV
D
Butadiene-styrene
3
JEE Main 2022 (Online) 28th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Stability of $$\alpha$$-Helix structure of proteins depends upon

A
dipolar interaction
B
H-bonding interaction
C
van der Waals forces
D
$$\pi$$-stacking interaction
4
JEE Main 2022 (Online) 28th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The formula of the purple colour formed in Laissaigne's test for sulphur using sodium nitroprusside is :

A
NaFe[Fe(CN)6]
B
Na[Cr(NH3)2(NCS)4]
C
Na2[Fe(CN)5(NO)]
D
Na4[Fe(CN)5(NOS)]
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