1
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The noble gas that does not occur in the atmosphere is :
A
Ne
B
He
C
Kr
D
Ra
2
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is not a correct method of the preparation of benzylamine from cyanobenzene ?
A
(i) SnCl2 + HCl(gas)          (ii) NaBH4
B
H2/Ni
C
(i) LiAlH4                           (ii) H3O+
D
(i) HCl/H2O                        (ii) NaBH4
3
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Number of stereo centers present in linear and cyclic structures of glucose are respectively :
A
4 & 4
B
4 & 5
C
5 & 4
D
5 & 5
4
JEE Main 2019 (Online) 10th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The number of real roots of the equation
5 + |2x – 1| = 2x (2x – 2) is
A
2
B
1
C
3
D
4

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