1
JEE Main 2019 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The ore that contains the metal in the form of fluoride is :
A
sphalerite
B
magnetite
C
malachite
D
cryolite
2
JEE Main 2019 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The increasing order of reactivity of the following compounds towards aromatic electrophilic substitution reaction is : JEE Main 2019 (Online) 9th April Morning Slot Chemistry - Basics of Organic Chemistry Question 170 English
A
A < B < C < D
B
D < A < C < B
C
D < B < A < C
D
B < C < A < D
3
JEE Main 2019 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The major product of the following reaction is :
$${\rm{C}}{{\rm{H}}_3}{\rm{CH = CHC}}{{\rm{O}}_2}{\rm{CH_3 }}\buildrel {LiAl{H_4}} \over \longrightarrow $$
A
CH3CH2CH2CHO
B
CH3CH2CH2CO2CH3
C
CH3CH = CHCH2OH
D
CH3CH2CH2CH2OH
4
JEE Main 2019 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Magnisium powder burns in air to give :
A
MgO and Mg3N2
B
MgO only
C
Mg(NO3)2 and Mg3N2
D
MgO and Mg(NO3)2
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