1
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The major product 'Y' in the following reactions is : JEE Main 2019 (Online) 10th April Evening Slot Chemistry - Haloalkanes and Haloarenes Question 109 English
A
JEE Main 2019 (Online) 10th April Evening Slot Chemistry - Haloalkanes and Haloarenes Question 109 English Option 1
B
JEE Main 2019 (Online) 10th April Evening Slot Chemistry - Haloalkanes and Haloarenes Question 109 English Option 2
C
JEE Main 2019 (Online) 10th April Evening Slot Chemistry - Haloalkanes and Haloarenes Question 109 English Option 3
D
JEE Main 2019 (Online) 10th April Evening Slot Chemistry - Haloalkanes and Haloarenes Question 109 English Option 4
2
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The correct match between Item-I and Item-II is :

Item - I Item - II
(a) High density polythene (I) Peroxide catalyst
(b) Polyacrylonitrile (II) Condensation at high
temperature & pressure
(c) Novolac (III) Ziegler-Natta Catalyst
(d) Nylon 6 (IV) Acid or base catalyst
A
(a) $$ \to $$ (IV), (b) $$ \to $$ (II), (c) $$ \to $$ (I), (d) $$ \to $$ (III)
B
(a) $$ \to $$ (III), (b) $$ \to $$ (I), (c) $$ \to $$ (IV), (d) $$ \to $$ (II)
C
(a) $$ \to $$ (II), (b) $$ \to $$ (IV), (c) $$ \to $$ (I), (d) $$ \to $$ (III)
D
(a) $$ \to $$ (III), (b) $$ \to $$ (I), (c) $$ \to $$ (II), (d) $$ \to $$ (IV)
3
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The ratio of the shortest wavelength of two spectral series of hydrogen spectrum is found to be about 9. The spectral series are :
A
Paschen and Pfund
B
Balmer and Brackett
C
Lyman and Paschen
D
Brackett and Pfund
4
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct order of the first ionization enthalpies is :
A
Ti < Mn < Zn < Ni
B
Zn < Ni < Mn < Ti
C
Mn < Ti < Zn < Ni
D
Ti < Mn < Ni < Zn
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