1
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The species that can have a trans-isomer is :
(en = ehane-1, 2-diamine, ox = oxalate)
A
[Cr(en)2(ox)]+
B
[Pt(en)Cl2]
C
[Pt(en)2Cl2]2+
D
[Zn(en)Cl2]
2
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Three complexes,
[CoCl(NH3)5] 2+(I),
[Co(NH3)5H2O]3+ (II) and
[Co(NH3)6] 3+(III)
absorb light in the visible region. The correct order of the wavelength of light absorbed by them is :
A
(III) > (I) > (II)
B
(III) > (II) > (I)
C
(I) > (II) > (III)
D
(II) > (I) > (III)
3
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Match the refining methods (Column I) with metals (Column II).
Column I
(Refining Methods)
Column II
(Metals)
(I) Liquation (a) Zr
(II) Zone Refining (b) Ni
(III) Mond Process (c) Sn
(IV) Van Arkel Method (d) Ga
A
(I)-(c) ; (II)-(a) ; (III)-(b) ; (IV)-(d)
B
(I)-(c) ; (II)-(d) ; (III)-(b) ; (IV)-(a)
C
(I)-(b) ; (II)-(d) ; (III)-(a) ; (IV)-(c)
D
(I)-(b) ; (II)-(c) ; (III)-(d) ; (IV)-(a)
4
JEE Main 2019 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The synonym for water gas when used in the production of methanol is :
A
fuel gas
B
laughing gas
C
syn gas
D
natural gas
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